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Love the game! Definitely going give it a try
Free
About
A two-player abstract strategy game where players draw colored lines between dots on a circular board. The goal is to avoid completing a triangle in your own color. Features AI opponents for training and a focus on local, offline play.
✓Local multiplayer on one device
✓AI opponents for training
✓Abstract strategy gameplay
✓Adjustable board size
✓Helper lines for moves
✓Match score system
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What's New in Duel SIM
1.0
June 16, 2026
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FAQ
What is Duel SIM?
Duel SIM is a two-player abstract strategy board game inspired by Ramsey Theory. Players draw colored lines between dots, aiming to avoid completing a triangle in their own color.
Does Duel SIM have online multiplayer?
No, Duel SIM is designed for local, face-to-face play on a single device. It does not feature online modes or matchmaking.
Can I play Duel SIM against AI?
Yes, Duel SIM offers two AI modes: a 'Trainer' mode to hone your strategy and a 'Master' mode that challenges a minimax engine.
What board sizes are available in Duel SIM?
You can choose board sizes with 6, 7, 8, or 9 vertices. Larger boards result in longer and more complex games.
Does Duel SIM have ads?
No, Duel SIM is ad-free and does not require an internet connection or accounts to play.
How do I win in Duel SIM?
The objective is to force your opponent to complete a triangle in their own color. By Ramsey theory, a winner is guaranteed on boards with 6 or more dots.
What is the age rating for Duel SIM?
Duel SIM has an age rating of 4+, making it suitable for a wide range of players.
How often is Duel SIM updated?
Duel SIM was last updated on 2026-06-16, indicating recent development and support.