Triangles Game The Classic

A strategy game where you draw lines to claim triangles. Fun for 1 or 2, with or without dice!

The classic pen-and-paper dice game — now on your phone! Play the classic dice-powered version, or switch to a pure-strategy mode with no luck involved.

■ What is Triangle Game?
13 dots are scattered randomly across the board. Draw lines between the dots to complete triangles and claim them as yours. The player who captures the most triangles wins! The rules are simple, but every single line you draw can change the course of the game.

■ Two Ways to Play
With Dice (Classic Mode) ① Roll the dice ② Draw that many lines between dots ③ Complete a triangle and it's yours! ④ When no more lines can be drawn, the game ends — most triangles wins!

No Dice (Strategy Mode) Pure skill, no luck. Each player draws exactly one line per turn, alternating back and forth — no waiting on a roll, just fast, focused strategy.

One rule applies to both modes: lines cannot cross each other. Think carefully before you draw!

■ The Thrilling Final Move (Dice Mode)
When only one line is left on the board, a special rule kicks in: You must roll a 1 to draw the final line. Roll anything else, and your turn is skipped — handing the chance to your opponent. Who will get that crucial last triangle? The tension is real!

(This rule doesn't apply in Strategy Mode — the game simply ends the moment the last line is drawn.)

■ 4 Opponents × With/Without Dice
2 Players — Take turns on the same device with a friend or family member!
vs CPU (Easy) — Relaxed play for casual fun
vs CPU (Normal) — A CPU that never misses a chance to claim a triangle
vs CPU (Hard) — Strategic AI that plans 1 move ahead to outsmart you
Each one can be played with or without dice — 8 ways to play in total.

■ More Features
Randomized board every game — no two games are the same
Share your results as an image to social media
Available in Japanese and English
Clean, minimal design for a quick and satisfying game session
Roll the dice — or skip them! Draw your lines. Claim your triangles!