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RTP
96.02%
Max win
10,000×
Ways to play
4
Max-win odds
1 in 11k
UFOBoost is a InfernoPlay slot on Stake Engine with 96.02% RTP and a 10,000× max win. Play the UFOBoost demo free above with play money — no deposit and no account needed. It has 4 ways to play, from the base game up to bonus 200 at 200× your bet, and each one's exact odds are broken down below. For real money, UFOBoost is available at Stake and Stake US.
Every way to play
4 modes · tap one to explore its odds
Cheapest route to the 10,000× max: Bonus 200 (200×) — about 2.2M× your bet staked per hit on average, vs 2.5M× on bonus 100 (100×).
Base game
Base game · 1× your bet per spin · A normal spin at 1× your bet.
RTP
95.98%
Max win
2,659×
In profit
6.0%
Pays nothing
51.7%
Odds explorer
Pick a payout and read the exact chance, straight from Engine's provably-fair outcome table.
Reading the outcome tables…
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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UFOBoost demo — questions
- Can I play the UFOBoost demo for free?
- Yes. The UFOBoost 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 UFOBoost?
- UFOBoost returns 96.02% in the base game. Across its 4 ways to play the RTP ranges from 95.96% (Bonus 200) to 96.02% (Bonus 100).
- What is the max win on UFOBoost?
- The max win on UFOBoost is 10,000× your bet. The most likely way to land it is Bonus 200 (200× per round), where it hits about 1 in 11,111 rounds.
- Does UFOBoost have a bonus buy?
- Yes — UFOBoost has 3 buy options: Bonus 50 at 50× your bet; Bonus 100 at 100× your bet; Bonus 200 at 200× your bet.
- How often does UFOBoost pay?
- In the base game, 6.0% of spins pay back more than they cost and 51.7% pay nothing. These figures come from the full outcome table, not a simulation.
- Who makes UFOBoost?
- UFOBoost is made by InfernoPlay and was released on Jun 4, 2026. It is published on Stake Engine, so its outcome tables are provably fair.
- Where can I play UFOBoost for real money?
- UFOBoost is available for real money at Stake and Stake US. Use the "Play at" button on this page to open it at the casino you prefer.