diff --git a/game/Makefile b/game/Makefile
new file mode 100644
index 0000000..5aeb1cc
--- /dev/null
+++ b/game/Makefile
@@ -0,0 +1,22 @@
+all: build run clean clear
+
+newrelease: release runrelease clear
+play: runrelease clear
+
+build:
+	g++ main.cpp utilities.cpp player.cpp ennemy.cpp spells.cpp interfaces.cpp combat.cpp -o main
+
+release:
+	g++ main.cpp utilities.cpp player.cpp ennemy.cpp spells.cpp interfaces.cpp combat.cpp -o release
+
+runrelease:
+	./release
+
+run:
+	./main
+
+clean:
+	rm main
+
+clear:
+	clear 
\ No newline at end of file
diff --git a/game/combat.cpp b/game/combat.cpp
new file mode 100644
index 0000000..2b0be8a
--- /dev/null
+++ b/game/combat.cpp
@@ -0,0 +1,110 @@
+#include <iostream>
+#include <vector>
+#include "structs.h"
+#include "utilities.h"
+#include "player.h"
+#include "ennemy.h"
+#include "spells.h"
+#include "interfaces.h"
+#include "combat.h"
+
+void init_combat(Player& player_arg, std::vector<Ennemy> ennemies_arg) {
+	std::vector<Ennemy> ennemies;
+	ennemies.push_back(ennemies_arg[1]);
+	ennemies.push_back(ennemies_arg[2]);
+
+	combat(player_arg, ennemies);
+}
+
+void combat(Player& player_arg, std::vector<Ennemy>& ennemies_arg) {
+	int arg;
+    bool combat_loop = 1;
+    while (combat_loop) {
+    	inc_speed(player_arg, -1);
+    	if (player_arg.speed == 0) {
+    		player_turn(player_arg, ennemies_arg, combat_loop, arg);
+    		check_deads(player_arg, ennemies_arg, combat_loop);
+    		init_speed(player_arg);
+    	}
+    	for (Ennemy& ennemy: ennemies_arg) {
+    		inc_speed(ennemy, -1);
+	    	if (ennemy.speed == 0) {
+	    		ennemy_turn(player_arg, ennemy);	
+	    		check_deads(player_arg, ennemies_arg, combat_loop);
+	    		init_speed(ennemy);
+	    	}
+    	}
+    }
+}
+void check_deads(Player& player_arg, std::vector<Ennemy>& ennemies_arg, bool& combat_loop) {
+	if (player_arg.health == 0) {
+		combat_loop = 0;
+	}
+	int i = 0;
+	for(Ennemy& ennemy: ennemies_arg) {
+		if (ennemy.health == 0) {
+			ennemies_arg.erase(ennemies_arg.begin() + i);
+		}
+		i++;
+	}
+}
+
+void player_turn(Player& player_arg, std::vector<Ennemy>& ennemies_arg, bool& combat_loop_arg, int& arg) {
+	display_combat_menu(player_arg, ennemies_arg);
+    std::cin >> arg;
+    select_combat_action(arg, player_arg, combat_loop_arg, ennemies_arg);
+}
+
+void select_combat_action(int arg, Player& player_arg, bool& combat_loop_arg, std::vector<Ennemy>& ennemies_arg) {
+	switch (arg){
+		case 1:
+			print_spell_book(player_arg.spell_book);
+			break;
+		case 2:
+			attack(player_arg, ennemies_arg);
+			break;
+		case 3:
+			if(player_escape(player_arg, ennemies_arg)) {
+				std::cout << "Escape succesfully" << std::endl;
+				combat_loop_arg = 0;
+			} else {
+				std::cout << "Escape not succesfully" << std::endl;
+			}
+			break;
+		default:
+			combat_loop_arg = 0;
+			break;
+	}
+}
+
+Spell choose_spell(const Ennemy& ennemy_arg) {
+	std::vector<int> spells(ennemy_arg.spells.size());
+	int i = random_choice(spells);
+	return ennemy_arg.spells[i];
+}
+
+void ennemy_turn(Player& player_arg, Ennemy& ennemy_arg) {
+	display_ennemi_turn(ennemy_arg);
+	Spell spell = choose_spell(ennemy_arg);
+	ennemy_use_spell(spell, player_arg, ennemy_arg);
+}
+
+void attack(Player& player_arg, std::vector<Ennemy>& ennemies_arg){
+	if(player_arg.job == 0) {
+		casting_spell(player_arg, ennemies_arg);
+	}
+}
+
+bool player_escape(const Player& player_arg, std::vector<Ennemy>& ennemies_arg) {
+	float min = 1;
+	for(Ennemy& ennemy: ennemies_arg) {
+		if(ennemy.menace < min) {
+			min = ennemy.menace;
+		}
+	}
+    return random_success(player_arg.escape * min);
+}
+
+bool escape(const Ennemy& ennemy_arg) {
+	return random_success(ennemy_arg.escape);
+}
\ No newline at end of file
diff --git a/game/combat.h b/game/combat.h
new file mode 100644
index 0000000..c21457d
--- /dev/null
+++ b/game/combat.h
@@ -0,0 +1,15 @@
+
+void init_combat(Player& player_arg, std::vector<Ennemy> ennemies_arg);
+void combat(Player& player_arg, std::vector<Ennemy>& ennemies_arg);
+
+void check_deads(Player& player_arg, std::vector<Ennemy>& ennemies_arg, bool& combat_loop);
+
+void player_turn(Player& player_arg, std::vector<Ennemy>& ennemies_arg, bool& combat_loop_arg, int& arg);
+void select_combat_action(int arg, Player& player_arg, bool& combat_loop_arg, std::vector<Ennemy>& ennemies_arg);
+
+Spell choose_spell(const Ennemy& ennemy_arg);
+void ennemy_turn(Player& player_arg, Ennemy& ennemy_arg);
+
+void attack(Player& player_arg, std::vector<Ennemy>& ennemies_arg);
+bool player_escape(const Player& player_arg, std::vector<Ennemy>& ennemies_arg);
+bool escape(const Ennemy& ennemy_arg);
\ No newline at end of file
diff --git a/game/ennemy.cpp b/game/ennemy.cpp
new file mode 100644
index 0000000..3638459
--- /dev/null
+++ b/game/ennemy.cpp
@@ -0,0 +1,82 @@
+#include <iostream>
+#include <string>
+#include <vector>
+#include "structs.h"
+#include "ennemy.h"
+#include "spells.h"
+
+void init_ennemy(Ennemy& ennemy_arg, 
+				   std::string name_arg,
+				   int xp_arg,
+				   int max_health_arg,
+				   int max_shield_arg,
+				   int max_speed_arg,
+				   int max_tame_arg,
+				   float escape_arg,
+				   float menace_arg,
+				   std::vector<Spell> spells_arg
+) {
+	ennemy_arg.name = name_arg;
+	ennemy_arg.xp = xp_arg;
+	ennemy_arg.max_health = max_health_arg;
+	ennemy_arg.max_shield = max_shield_arg;
+	ennemy_arg.max_speed = max_speed_arg;
+	ennemy_arg.max_tame = max_tame_arg;
+	init_stats(ennemy_arg);
+	ennemy_arg.escape = escape_arg;
+	ennemy_arg.menace = menace_arg;
+	ennemy_arg.spells = spells_arg;
+}
+
+void init_speed(Ennemy& ennemy_arg) {
+	ennemy_arg.speed = ennemy_arg.max_speed;
+}
+void init_stats(Ennemy& ennemy_arg) {
+	ennemy_arg.health = ennemy_arg.max_health;
+	ennemy_arg.shield = ennemy_arg.max_shield;
+	ennemy_arg.speed = ennemy_arg.max_speed;
+	ennemy_arg.tame = ennemy_arg.max_tame;
+}
+
+void create_ennemies(std::vector<Ennemy>& ennemies_arg) {
+	std::vector<Spell> all_spells; 
+	init_spells(all_spells);
+
+	Ennemy emplialin;
+	init_ennemy(emplialin, "Emplialin", 60, 40, 50, 20, 50, 0.8, 0.6, std::vector<Spell>{all_spells[0], all_spells[2], all_spells[4]});
+	ennemies_arg.push_back(emplialin);
+
+	Ennemy arzkalin;
+	init_ennemy(arzkalin, "Arzkalin", 60, 70, 60, 10, 100, 1.0, 0.5, std::vector<Spell>{all_spells[1], all_spells[3], all_spells[4]});
+	ennemies_arg.push_back(arzkalin);
+
+	Ennemy coindithai;
+	init_ennemy(coindithai, "Coindithaï", 32, 30, 15, 20, 10, 0.9, 0.8, std::vector<Spell>{all_spells[5]});
+	ennemies_arg.push_back(coindithai);
+}
+
+void inc_health(Ennemy& ennemy_arg, int value_arg){
+	ennemy_arg.health += value_arg;
+}
+void inc_shield(Ennemy& ennemy_arg, int value_arg){
+	ennemy_arg.shield += value_arg;
+}
+void inc_speed(Ennemy& ennemy_arg, int value_arg){
+	ennemy_arg.speed += value_arg;
+}
+
+void print_ennemy(const Ennemy& ennemy_arg) {
+	std::cout << ennemy_arg.name << std::endl;
+    std::cout << "Xp: " << ennemy_arg.xp << std::endl;
+    std::cout << "Health: " << ennemy_arg.health << "/"<< ennemy_arg.max_health << std::endl;
+    std::cout << "Shield: " << ennemy_arg.shield << "/"<< ennemy_arg.max_shield << std::endl;
+    std::cout << "Speed: " << ennemy_arg.speed << "/"<< ennemy_arg.max_speed << std::endl;
+    std::cout << "Speed: " << ennemy_arg.tame << "/"<< ennemy_arg.max_tame << std::endl;
+    std::cout << "Escape: " << ennemy_arg.escape * 100 << "%"<< std::endl;
+    std::cout << "Menace: " << ennemy_arg.menace * 100 << "%"<< std::endl;
+    std::cout << "Spells: ";
+    for (Spell spell: ennemy_arg.spells) {
+    	std::cout << spell.name << ", ";
+    }
+    std::cout << std::endl << std::endl;
+}
\ No newline at end of file
diff --git a/game/ennemy.h b/game/ennemy.h
new file mode 100644
index 0000000..15c5c35
--- /dev/null
+++ b/game/ennemy.h
@@ -0,0 +1,25 @@
+
+void init_ennemy(Ennemy& ennemy_arg, 
+				   std::string name_arg,
+				   int xp_arg,
+				   int health_arg,
+				   int shield_arg,
+				   int speed_arg,
+				   int tame_arg,
+				   int max_health_arg,
+				   int max_shield_arg,
+				   int max_speed_arg,
+				   int max_tame_arg,
+				   float escape_arg,
+				   float menace_arg,
+				   std::vector<Spell> spells_arg
+);
+void init_speed(Ennemy& ennemy_arg);
+void init_stats(Ennemy& ennemy_arg);
+void create_ennemies(std::vector<Ennemy>& ennemies_arg);
+
+void inc_health(Ennemy& ennemy_arg, int value_arg);
+void inc_shield(Ennemy& ennemy_arg, int value_arg);
+void inc_speed(Ennemy& ennemy_arg, int value_arg);
+
+void print_ennemy(const Ennemy& ennemy_arg);
\ No newline at end of file
diff --git a/game/interfaces.cpp b/game/interfaces.cpp
new file mode 100644
index 0000000..9470556
--- /dev/null
+++ b/game/interfaces.cpp
@@ -0,0 +1,37 @@
+#include <iostream>
+#include <vector>
+#include "structs.h"
+#include "player.h"
+#include "ennemy.h"
+#include "interfaces.h"
+
+void display_menu() {
+	std::cout << "1. Search ennemies" << std::endl;
+	std::cout << "2. Quit" << std::endl;
+	std::cout << std::endl;
+}
+
+void display_combat_menu(const Player& player_arg, const std::vector<Ennemy>& ennemies_arg) {
+	std::cout << std::endl;
+	print_player(player_arg);
+	for (Ennemy ennemy: ennemies_arg) {
+		print_ennemy(ennemy);
+	}
+	std::cout << "1. Spell book" << std::endl;
+	std::cout << "2. Cast spell" << std::endl;
+	std::cout << "3. Escape" << std::endl;
+	std::cout << std::endl;
+}
+
+void display_ennemi_turn(const Ennemy& ennemy_arg) {
+	std::cout << ennemy_arg.name << "'s turn" << std::endl;
+}
+
+void display_ennemies(const std::vector<Ennemy>& ennemies_arg) {
+	int i = 0;
+	for(Ennemy ennemy: ennemies_arg) {
+		std::cout << i << ", " << ennemy.name << std::endl;
+		i++;
+	}
+	std::cout << std::endl;
+}
\ No newline at end of file
diff --git a/game/interfaces.h b/game/interfaces.h
new file mode 100644
index 0000000..2a432ef
--- /dev/null
+++ b/game/interfaces.h
@@ -0,0 +1,5 @@
+
+void display_menu();
+void display_combat_menu(const Player& player_arg, const std::vector<Ennemy>& ennemies_arg);
+void display_ennemi_turn(const Ennemy& ennemy_arg);
+void display_ennemies(const std::vector<Ennemy>& ennemies_arg);
\ No newline at end of file
diff --git a/game/main.cpp b/game/main.cpp
new file mode 100644
index 0000000..1fa1eb0
--- /dev/null
+++ b/game/main.cpp
@@ -0,0 +1,40 @@
+#include <iostream>
+#include <vector>
+#include "structs.h"
+#include "player.h"
+#include "ennemy.h"
+#include "spells.h"
+#include "interfaces.h"
+#include "combat.h"
+
+void select_menu(int arg, Player& player_arg, std::vector<Ennemy>& ennemies_arg, bool& game_loop_arg);
+
+void select_menu(int arg, Player& player_arg, std::vector<Ennemy>& ennemies_arg, bool& game_loop_arg) {
+	switch (arg){
+		case 1:
+			init_combat(player_arg, ennemies_arg);
+			break;
+		case 2:
+			game_loop_arg = 0;
+			break;
+		default:
+			game_loop_arg = 0;
+			break;
+	}
+}
+
+int main() {
+	Player mage;
+	init_default_mage(mage);
+	std::vector<Ennemy> ennemies;
+	create_ennemies(ennemies);
+
+	int arg;
+    bool game_loop = 1;
+    while (game_loop) {
+    	display_menu();
+    	std::cin >> arg;
+    	select_menu(arg, mage, ennemies, game_loop);
+    }
+	return 0;
+}
\ No newline at end of file
diff --git a/game/player.cpp b/game/player.cpp
new file mode 100644
index 0000000..084350d
--- /dev/null
+++ b/game/player.cpp
@@ -0,0 +1,78 @@
+#include <iostream>
+#include <vector>
+#include <string>
+#include "structs.h"
+#include "utilities.h"
+#include "player.h"
+#include "spells.h"
+
+const int MAGE = 0;
+const int ALCHIMIST = 1;
+const int WARRIOR = 2;
+const int ENGINEER = 3;
+const int ARCHER = 4;
+const int TAMER = 5;
+
+
+void init_default_mage(Player& player_arg) {
+    player_arg.name = "Liam le dieu";
+    player_arg.job = MAGE;
+    player_arg.xp = 0;
+    player_arg.max_health = 50;
+    player_arg.max_shield = 20;
+    player_arg.max_speed = 10;
+    player_arg.max_mana = 50;
+    player_arg.max_energy = 0;
+    init_stats(player_arg);
+    init_spells(player_arg.spell_book);
+    player_arg.escape = 1.0;
+    player_arg.menace = 0.7;
+}
+
+void init_speed(Player& player_arg) {
+    player_arg.speed = player_arg.max_speed;
+}
+
+void init_stats(Player& player_arg) {
+    player_arg.health = player_arg.max_health;
+    player_arg.shield = player_arg.max_shield;
+    player_arg.speed = player_arg.max_speed;
+    player_arg.mana = player_arg.max_mana;
+    player_arg.energy = player_arg.max_energy;
+}
+
+void inc_health(Player& player_arg, int value_arg){
+    player_arg.health += value_arg;
+}
+void inc_shield(Player& player_arg, int value_arg){
+    player_arg.shield += value_arg;
+}
+void inc_speed(Player& player_arg, int value_arg){
+    player_arg.speed += value_arg;
+}
+void inc_mana(Player& player_arg, int value_arg){
+    player_arg.mana += value_arg;
+}
+void inc_energy(Player& player_arg, int value_arg){
+    player_arg.energy += value_arg;
+}
+
+void level_up(Player& player_arg, int xp_arg){
+    player_arg.xp += xp_arg;
+}
+
+void print_player(const Player& player_arg) {
+    std::vector<std::string> jobs = {"Mage", "Alchimist", "Warrior", "Engineer", "Archer", "Tamer"};
+
+    std::cout << player_arg.name << std::endl;
+    std::cout << jobs[player_arg.job] << std::endl;
+    std::cout << "Xp: " << player_arg.xp << std::endl;
+    std::cout << "Health: " << player_arg.health << "/"<< player_arg.max_health << std::endl;
+    std::cout << "Shield: " << player_arg.shield << "/"<< player_arg.max_shield << std::endl;
+    std::cout << "Mana: " << player_arg.mana << "/"<< player_arg.max_mana << std::endl;
+    std::cout << "Energy: " << player_arg.energy << "/"<< player_arg.max_energy << std::endl;
+    std::cout << "Speed: " << player_arg.speed << "/"<< player_arg.max_speed << std::endl;
+    std::cout << "Escape: " << player_arg.escape * 100 << "%"<< std::endl;
+    std::cout << "Menace: " << player_arg.menace * 100 << "%"<< std::endl;
+    std::cout << std::endl;
+}
\ No newline at end of file
diff --git a/game/player.h b/game/player.h
new file mode 100644
index 0000000..fb48a35
--- /dev/null
+++ b/game/player.h
@@ -0,0 +1,15 @@
+
+void init_default_mage(Player& player_arg);
+
+void init_speed(Player& player_arg);
+void init_stats(Player& player_arg);
+
+void inc_health(Player& player_arg, int value_arg);
+void inc_shield(Player& player_arg, int value_arg);
+void inc_speed(Player& player_arg, int value_arg);
+void inc_mana(Player& player_arg, int value_arg);
+void inc_energy(Player& player_arg, int value_arg);
+
+void level_up(Player& player_arg, int xp_arg);
+
+void print_player(const Player& player_arg);
\ No newline at end of file
diff --git a/game/release b/game/release
new file mode 100755
index 0000000..6b143c3
Binary files /dev/null and b/game/release differ
diff --git a/game/spells.cpp b/game/spells.cpp
new file mode 100644
index 0000000..2cf3afa
--- /dev/null
+++ b/game/spells.cpp
@@ -0,0 +1,269 @@
+#include <iostream>
+#include <vector>
+#include <string>
+#include "utilities.h"
+#include "structs.h"
+#include "player.h"
+#include "ennemy.h"
+#include "interfaces.h"
+#include "spells.h"
+
+
+// Elements
+const int FIRE = 0;
+const int AIR = 1;
+const int WATER = 2;
+const int EARTH = 3;
+const int EATHER = 4;
+const std::vector<std::string> elements = {"Fire", "Air", "Water", "Earth", "Eather"};
+
+// Combinaisons
+const int UP = 0;
+const int RIGHT = 1;
+const int DOWN = 2;
+const int LEFT = 3;
+const int END_SPELL = 5;
+const std::vector<std::string> arrows = {"↑", "→", "↓", "←"};
+
+void init_spell(Spell& spell_arg, const std::string& name_arg, int damage_arg, int cost_arg, float precision_arg, bool zone_arg, std::vector<int> elements_arg, std::vector<int> combinaison_arg) {
+	spell_arg.name = name_arg;
+	spell_arg.damage = damage_arg;
+	spell_arg.cost_mana = cost_arg;
+	spell_arg.cost_health = 0;
+	spell_arg.precision = precision_arg;
+	spell_arg.zone = zone_arg;
+	spell_arg.elements = elements_arg;
+	spell_arg.combinaison = combinaison_arg;
+}
+
+void init_spells(std::vector<Spell>& spell_book_arg) {
+	Spell fire_ball;
+	init_spell(
+		fire_ball,
+		"Fire Ball",
+		10,
+		5,
+		0.8,
+		1,
+		std::vector<int>{FIRE},
+        std::vector<int>{UP, RIGHT, UP}
+    );
+    spell_book_arg.push_back(fire_ball);
+
+    Spell tsunami;
+	init_spell(
+		tsunami,
+		"Tsunami",
+		15,
+		8,
+		1,
+		1,
+		std::vector<int>{WATER},
+        std::vector<int>{UP, DOWN, RIGHT}
+    );
+    spell_book_arg.push_back(tsunami);
+
+    Spell tailwind_css;
+	init_spell(
+		tailwind_css,
+		"Tailwind CSS",
+		8,
+		4,
+		0.8,
+		0,
+		std::vector<int>{AIR},
+        std::vector<int>{UP, UP, UP}
+    );
+    spell_book_arg.push_back(tailwind_css);
+
+    Spell rolling_rock;
+	init_spell(
+		rolling_rock,
+		"Rolling Rock",
+		15,
+		13,
+		0.7,
+		0,
+		std::vector<int>{EARTH},
+        std::vector<int>{DOWN, UP, LEFT}
+    );
+    spell_book_arg.push_back(rolling_rock);
+
+    Spell lightning;
+	init_spell(
+		lightning,
+		"Lightning",
+		20,
+		10,
+		0.8,
+		0,
+		std::vector<int>{AIR, FIRE},
+        std::vector<int>{DOWN, UP, LEFT, UP}
+    );
+    spell_book_arg.push_back(lightning);
+
+    Spell bubble;
+	init_spell(
+		bubble,
+		"Bubble",
+		5,
+		2,
+		1,
+		0,
+		std::vector<int>{AIR, WATER},
+        std::vector<int>{UP, UP, UP, UP}
+    );
+    spell_book_arg.push_back(bubble);
+}
+
+//Return -1 if no spells, 0 if a spell is totally completed and the only possible, else the number of spells possible
+int possible_spell(const std::vector<Spell>& spell_book_arg, const std::vector<int>& spell_arg) {
+	int spells_count = 0;
+	for (const Spell& spell: spell_book_arg) {
+		if (spell.combinaison.size() >= spell_arg.size()) {
+			std::vector<int> actual_spell(spell.combinaison.begin(), spell.combinaison.begin() + spell_arg.size());
+			if (actual_spell == spell_arg) {
+				spells_count++;
+			}	
+		}
+	}
+	return spells_count;
+}
+
+Spell find_spell_by_combinaison(const std::vector<Spell>& spell_book_arg, const std::vector<int>& spell_arg) {
+	for (const Spell& spell: spell_book_arg) {
+		if (spell.combinaison == spell_arg) {
+			return spell;
+		}
+	}
+	return spell_book_arg[0];
+}
+
+//Return true if the player still can cast a spell
+bool cast_spell(Player& player_arg, std::vector<int>& spell_arg, int spell_segment_arg, std::vector<Ennemy>& ennemies_arg) {
+
+	std::vector<Spell> spell_book = player_arg.spell_book;
+
+	if (spell_segment_arg == END_SPELL) {
+		Spell casted_spell = find_spell_by_combinaison(spell_book, spell_arg);
+		if (spell_arg.size() == casted_spell.combinaison.size()) {
+			use_spell(casted_spell, player_arg, ennemies_arg);
+		}
+		return 0;
+	} else {
+		spell_arg.push_back(spell_segment_arg);
+		int count_spell = possible_spell(spell_book, spell_arg);
+		if (count_spell <= 1) {
+			if (count_spell == 1) {
+				Spell casted_spell = find_spell_by_combinaison(spell_book, spell_arg);
+				if (spell_arg.size() == casted_spell.combinaison.size()) {
+					use_spell(casted_spell, player_arg, ennemies_arg);
+				} else {
+					return 1;
+				}
+			} else if (count_spell == 0) {
+				std::cout << "Spell doesn't exist" << std::endl;
+			}
+			spell_arg = {};
+			return 0;
+		}	
+	}
+	return 1;
+}
+
+void casting_spell(Player& player_arg, std::vector<Ennemy>& ennemies_arg) {
+	std::vector<int> spell;
+	int spell_segment;
+	do {
+		std::cin >> spell_segment;
+	} while (cast_spell(player_arg, spell, spell_segment, ennemies_arg));
+
+}
+
+void use_spell(const Spell& spell_arg, Player& player_arg, std::vector<Ennemy>& ennemies_arg) {
+	if (player_arg.mana - spell_arg.cost_mana >= 0) {
+		inc_health(player_arg, -spell_arg.cost_health);
+		inc_mana(player_arg, -spell_arg.cost_mana);
+		if(spell_arg.zone) {
+			for(Ennemy& ennemy: ennemies_arg) {
+				spell_damage(ennemy, spell_arg);
+			}
+		} else {
+			Ennemy& ennemy = choose_target(ennemies_arg);
+			spell_damage(ennemy, spell_arg);
+		}
+		std::cout << player_arg.name<< " casts " << spell_arg.name << std::endl;
+	} else {
+		std::cout << "Not enough mana" << std::endl;
+	}
+}
+
+void spell_damage(Ennemy& ennemy_arg, const Spell& spell_arg) {
+	if(ennemy_arg.shield >= spell_arg.damage) {
+		inc_shield(ennemy_arg, -spell_arg.damage);
+	} else if(ennemy_arg.shield > 0) {
+		inc_health(ennemy_arg, ennemy_arg.shield - spell_arg.damage);
+		inc_shield(ennemy_arg, -ennemy_arg.shield);
+	} else if(ennemy_arg.health >= spell_arg.damage) {
+		inc_health(ennemy_arg, -spell_arg.damage);
+	} else {
+		inc_health(ennemy_arg, -ennemy_arg.health);
+	}
+}
+
+Ennemy& choose_target(std::vector<Ennemy>& ennemies_arg) {
+	display_ennemies(ennemies_arg);
+	int arg;
+	std::cin >> arg;
+	return ennemies_arg[arg];
+}
+
+void ennemy_use_spell(const Spell& spell_arg, Player& player_arg, Ennemy& ennemy_arg) {
+	inc_health(ennemy_arg, -spell_arg.cost_health);
+
+	if(random_success(spell_arg.precision)) {
+		if(player_arg.shield >= spell_arg.damage) {
+			inc_shield(player_arg, -spell_arg.damage);
+		} else if(player_arg.shield > 0) {
+			inc_health(player_arg, player_arg.shield - spell_arg.damage);
+			inc_shield(player_arg, -player_arg.shield);
+		} else if(player_arg.health >= spell_arg.damage) {
+			inc_health(player_arg, -spell_arg.damage);
+		} else {
+			inc_health(player_arg, -player_arg.health);
+		}
+		std::cout << ennemy_arg.name<< " casts " << spell_arg.name << std::endl;
+	} else {
+		std::cout << ennemy_arg.name<< " fails " << spell_arg.name << std::endl;
+	}
+}
+
+void print_spell(const Spell& spell_arg) {
+	std::cout << spell_arg.name << std::endl;
+	std::cout << "Damage : " << spell_arg.damage << std::endl;
+	std::cout << "Mana cost : " << spell_arg.cost_mana << std::endl;
+	if(spell_arg.cost_health > 0) {
+		std::cout << "Health cost : " << spell_arg.cost_health << std::endl;
+	}
+	std::cout << "Precision : " << spell_arg.damage << std::endl;
+	std::cout << "Elements : ";
+	for (int element: spell_arg.elements) {
+		std::cout << elements[element] << " ";
+	}
+	std::cout << std::endl;
+	if (spell_arg.zone) {
+		std::cout << "Zone" << std::endl;	
+	}
+	std::cout << "Combinaison : ";
+	
+	for (int arrow: spell_arg.combinaison) {
+		std::cout << arrows[arrow] << " ";
+	}
+	std::cout << std::endl << std::endl;
+}
+
+void print_spell_book(const std::vector<Spell>& spell_book_arg) {
+	for (Spell spell: spell_book_arg) {
+		print_spell(spell);
+	}
+}
\ No newline at end of file
diff --git a/game/spells.h b/game/spells.h
new file mode 100644
index 0000000..70f6e77
--- /dev/null
+++ b/game/spells.h
@@ -0,0 +1,23 @@
+
+void init_spell(Spell& spell_arg,
+				  const std::string& name_arg,
+				  int damage_arg,
+				  int cost_arg,
+				  float precision_arg,
+				  bool zone_arg,
+				  std::vector<int> elements_arg,
+				  std::vector<int> combinaison_arg
+);
+void init_spells(std::vector<Spell>& spell_book_arg);
+
+int possible_spell(const std::vector<Spell>& spell_book_arg, const std::vector<int>& spell_arg);
+Spell find_spell_by_combinaison(const std::vector<Spell>& spell_book_arg, const std::vector<int>& spell_arg);
+bool cast_spell(Player& player_arg, std::vector<int>& spell_arg, std::vector<Ennemy>& ennemies_arg);
+void casting_spell(Player& player_arg, std::vector<Ennemy>& ennemies_arg);
+void use_spell(const Spell& spell_arg, Player& player_arg, std::vector<Ennemy>& ennemies_arg);
+void spell_damage(Ennemy& ennemy_arg, const Spell& spell_arg);
+Ennemy& choose_target(std::vector<Ennemy>& ennemies_arg);
+void ennemy_use_spell(const Spell& spell_arg, Player& player_arg, Ennemy& ennemy_arg);
+
+void print_spell(const Spell& spell_arg);
+void print_spell_book(const std::vector<Spell>& spell_book_arg);
diff --git a/game/structs.h b/game/structs.h
new file mode 100644
index 0000000..b45d2f8
--- /dev/null
+++ b/game/structs.h
@@ -0,0 +1,27 @@
+
+struct Spell {
+	std::string name;
+	int damage;
+	int cost_health, cost_mana;
+    float precision;
+    bool zone;
+    std::vector<int> elements, combinaison;
+};
+
+struct Ennemy {
+	std::string name;
+    int xp;
+    int health, shield, speed, tame;
+    int max_health, max_shield, max_speed, max_tame;
+    float escape, menace; 	//Menace comlpexifies the escape, the higher the value is, the less menace it is
+    std::vector<Spell> spells;
+};
+
+struct Player {
+	std::string name;
+    int job, xp;
+    int health, shield, speed, mana, energy;
+    int max_health, max_shield, max_speed, max_mana, max_energy;
+    float escape, menace;
+    std::vector<Spell> spell_book;
+};
\ No newline at end of file
diff --git a/game/utilities.cpp b/game/utilities.cpp
new file mode 100644
index 0000000..5223fb7
--- /dev/null
+++ b/game/utilities.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+#include <random>
+#include "utilities.h"
+
+bool random_success(float probability) {
+	std::random_device rd;
+    std::mt19937 gen(rd());
+    std::bernoulli_distribution dist(probability);
+    return dist(gen);
+}
+
+int random_choice(std::vector<int> list) {
+	std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_int_distribution<> dis(0, list.size() - 1);
+    return dis(gen);
+}
\ No newline at end of file
diff --git a/game/utilities.h b/game/utilities.h
new file mode 100644
index 0000000..427da96
--- /dev/null
+++ b/game/utilities.h
@@ -0,0 +1,3 @@
+
+bool random_success(float probability);
+int random_choice(std::vector<int> list);
\ No newline at end of file