Tic Tac Toe 15x15

strategy · puzzle · HoangLong

🎮 Tic Tac Toe – Caro 15×15 "Multiplayer Big Update" Because normal 3×3 Tic Tac Toe has been solved by humanity since ancient times. ⭐ v2.5.0 – “The Board Thinks Back” Update ⭐ • Two difficulty levels to carefully match your confidence: → Easy AI Perfect for warming up and feeling clever for a short, peaceful moment. → Hard AI Perfect for replaying the same match at 2 a.m. while whispering “okay but this time I’ve got it”. • The AI is no longer “random and polite” It blocks early, defends properly, remembers patterns, and quietly punishes careless moves. (It does not cheat. It just doesn’t forgive.) • LAN Multiplayer Play with friends on the same Wi-Fi, with chat, rematch, and draw offers. Leaving mid-match is remembered. Repeatedly. Calmly. Forever. • Undo button The only socially acceptable way to say “That move didn’t represent my true intelligence.” (Disabled in LAN mode, because fairness.) • Achievements system The game tracks your victories, your persistence, and your refusal to give up after losing to Hard AI. • Leaderboard Keeps track of total matches, so everyone can pretend the numbers tell the whole story. • Victory effects Fireworks and subtle screen effects, because winning should feel good even when nobody is watching. • Chill background music Relaxing enough to think clearly, emotional enough to reflect on your last three mistakes. How the game actually feels: Win → “I planned this ten moves ago.” Lose → “Mouse slipped.” → “Board is weird.” → “AI plays too defensively.” → Quietly stare at the screen. 🎯 Gameplay basics: • 15×15 board – first to place 5 in a row wins (horizontal, vertical, or diagonal) • Blocked on both ends? Sorry. The board does not accept accidental victories. • X goes first, O goes second Classic rules, upgraded consequences. • 2-player offline mode A reliable way to test friendships with minimal physical damage. • AI mode Powered by Minimax, heuristics, and just enough patience to make you rethink every aggressive move. • LAN mode Same rules, more pressure, fewer excuses. 🖥 System requirements: Minimum: Any computer that can open Notepad without overheating. Storage: ≥ 60 MB → Lighter than having YouTube + Facebook open in Chrome at the same time ⚡ ⚠️ Do not delete or move the folder to avoid errors._internal 🧑‍💻 From the developer (an 8th-grade student, occasionally reminded to study) “This game was made instead of doing homework. My Informatics score is fine. Other subjects are… negotiating. Thanks for playing something built during study breaks and late nights. If it made you think, laugh, or quietly respect a wooden board, then the mission worked. If you’re feeling generous, you may gift the developer an imaginary blue ballpoint pen. Milk tea is also accepted in spirit.🍑” Play now and find out who’s actually thinking and who’s just placing stones. Good luck. Take your time. The board remembers 🤍🎮 You can also download the game and explore the source code via the links below : 🔗 Download on itch.io: HoangLonggg – itch.io 💻 Source code: GitHub Thank You --HoangLong--