Faultline

Read every number. Pin every pocket. Dig down to the core.

Faultline is minesweeper with a roguelike engine. Every board is solvable by pure logic — no guessing — but logic alone won't hit the ore target. Ride the pressure, build a train of mining cars, and decide when to cash out.

• The Boiler. Ore you dig piles up in the boiler. When it's full: Vent to lock it in, or Press your luck — ×3, ×4, ×6… or lose half.
• Five elements. Fire spreads, Water flows downhill along the numbers, Lightning jumps between matching numbers, Wind swirls, Earth cracks until it hits a wall. Fuse two crystals into a time bomb that detonates at your next vent.
• Pins are fuses. Correctly pinned mines detonate for ore when fire or lightning reaches them.
• 17 cars, 30 forgings. Coal Car, Lantern, Capacitor, Pressure Cooker… forge them at the anvil.
• 5 depths, each ending at its own Floor, and Endless Dig once you reach the core.

Hand-drawn in a geological survey notebook. Mouse only. English & Tiếng Việt (switch in Settings → Language).

Tiếng Việt

Đọc từng con số. Ghim từng túi áp suất. Đi xuống, tới lõi. Faultline là dò mìn gắn động cơ roguelike: mọi bàn đều giải được bằng suy luận, không phải đoán. Dồn áp suất, lắp đoàn toa, và tự quyết khi nào chốt lời — Xả để chốt nồi, hay Nén để liều ×3, ×4, ×6… hoặc mất nửa nồi.

This is an early preview — feedback is very welcome in the comments!