Siege Tower Defense is a Sakura Studios slot on Stake Engine with 96.20% RTP and a 25,000× max win. Play the Siege Tower Defense demo free above with play money — no deposit and no account needed. It has 8 ways to play, from the base game up to onslaught at 800× your bet, and each one's exact odds are broken down below. For real money, Siege Tower Defense is available at Stake.
Every way to play
8 modes · tap one to explore its odds
Cheapest route to the 25,000× max: Citadel (500×) — about 333M× your bet staked per hit on average, vs 111573M× on raid (20×).
Base game
Base game · 1× your bet per spin · A normal spin at 1× your bet.
Odds explorer
Pick a payout and read the exact chance, straight from Engine's provably-fair outcome table.
Demos use play money. Maths computed by circus.fyi from Engine's published provably-fair tables — every outcome a mode can produce and how often, nothing sampled.
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Siege Tower Defense demo — questions
- Can I play the Siege Tower Defense demo for free?
- Yes. The Siege Tower Defense demo on circus.fyi runs the real game from Stake Engine with play money, so you can try every feature without a deposit or an account.
- What is the RTP of Siege Tower Defense?
- Siege Tower Defense has an RTP of 96.20%, which means it pays back that share of every amount staked over the long run.
- What is the max win on Siege Tower Defense?
- The max win on Siege Tower Defense is 25,000× your bet. The most likely way to land it is Citadel (500× per round), where it hits about 1 in 666,678 rounds.
- Does Siege Tower Defense have a bonus buy?
- Yes — Siege Tower Defense has 6 buy options: Raid at 20× your bet; Outpost at 100× your bet; Dragon at 200× your bet; Fortress at 250× your bet; Citadel at 500× your bet; Onslaught at 800× your bet.
- How often does Siege Tower Defense pay?
- In the base game, 7.8% of spins pay back more than they cost and 55.0% pay nothing. These figures come from the full outcome table, not a simulation.
- Who makes Siege Tower Defense?
- Siege Tower Defense is made by Sakura Studios and was released on Oct 8, 2026. It is published on Stake Engine, so its outcome tables are provably fair.
- Where can I play Siege Tower Defense for real money?
- Siege Tower Defense is available for real money at Stake. Use the "Play at" button on this page to open it at the casino you prefer.