How it works
Rules
Doomstack has three modes: a free skill-based climb, ranked chip duels, and bracket tournaments. All are decided entirely by how high you climb — never by how much you spend.
The free climb
One global leaderboard, no payment required. Climb an endless, procedurally generated tower — ladders, platforms, and rising lava — and reach the highest point you can before the lava catches you.
- Your best peak height is saved as your all-time rank.
- Play without an account; sign in to record your peak and appear on the leaderboard.
- Runs are shareable as deterministic replays.
Chip duels (ranked)
A head-to-head match on the same seed: both players climb, and the higher peak wins the opponent's chips. It is a game of skill — identical starting conditions, outcome determined by play.
A tie or an unplayed match refunds both players' chips. Chips are non-cashable — they can never be converted back into real money.
Tournaments
Bracket competitions with a paid entry fee and predetermined cash prizes. Enter, get seeded into a bracket, and play each round head-to-head until a champion is crowned.
- Entry fees are paid via Stripe Checkout. Prizes are company-guaranteed and paid out via Stripe Connect.
- Prize amounts are set before registration opens — they are not pooled from entry fees.
- Bracket sizes: 4, 8, 16, or 32 players. Non-power-of-2 counts are padded with byes.
Buying chips
Chips are purchased with Stripe (minimum top-up $5). They are used for chip duel stakes.
Chips have no cash value and cannot be withdrawn, transferred, or sold. You must confirm you are 18+ before your first paid match or tournament entry.