Loading casinos...
RTP
96.00%
Max win
7,500×
Ways to play
3
Max-win odds
1 in 337
Orbonauts is a Spinmio slot on Stake Engine with 96.00% RTP and a 7,500× max win. Play the Orbonauts demo free above with play money — no deposit and no account needed. It has 3 ways to play, from the base game up to bonus buy at 100× your bet, and each one's exact odds are broken down below. For real money, Orbonauts is available at Stake.
Every way to play
3 modes · tap one to explore its odds
Cheapest route to the 7,500× max: Bonus buy (100×) — about 33,700× your bet staked per hit on average, vs 8.7M× on base game (1×).
Base game
Base game · 1× your bet per spin · A normal spin at 1× your bet.
RTP
96.00%
Max win
7,500×
In profit
6.9%
Pays nothing
75.4%
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.
Popular free demo slots
The most-played of 3,773 Stake Engine demos.
Orbonauts demo — questions
- Can I play the Orbonauts demo for free?
- Yes. The Orbonauts 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 Orbonauts?
- Orbonauts has an RTP of 96.00%, which means it pays back that share of every amount staked over the long run.
- What is the max win on Orbonauts?
- The max win on Orbonauts is 7,500× your bet. The most likely way to land it is Bonus buy (100× per round), where it hits about 1 in 337 rounds.
- Does Orbonauts have a bonus buy?
- Yes — Orbonauts has 1 buy option: Bonus buy at 100× your bet.
- How often does Orbonauts pay?
- In the base game, 6.9% of spins pay back more than they cost and 75.4% pay nothing. These figures come from the full outcome table, not a simulation.
- Who makes Orbonauts?
- Orbonauts is made by Spinmio and was released on Oct 26, 2026. It is published on Stake Engine, so its outcome tables are provably fair.
- Where can I play Orbonauts for real money?
- Orbonauts is available for real money at Stake. Use the "Play at" button on this page to open it at the casino you prefer.