Onlyplay slots: free demos ranked for bonus play

5 of the slots we rate for clearing bonuses come from Onlyplay. The entry rule is the same for every provider — RTP of 96.3% or better, weighted toward low and medium volatility. The range is 97%–97% RTP, with an average of 97.00%.

In bonus terms, that means clearing a $100 bonus at 35x on a Onlyplay game in this list costs $105.00 on average, against $140.00 on a standard 96% slot. Coin Flynn Deluxe is the cheapest to clear at $105.00. It is also our top wagering-fit pick from Onlyplay.

By volatility the split is 5 medium. There are no high-volatility games in this group, which makes Onlyplay a comfortable studio for bonus play. Free spins, jackpot and scatter turn up most across the set. Common themes: irish, lucky and gold. Release dates run from 2025 (Rush for Diamonds: Hold and Win) to 2026 (Buffalo Treasure: Hold&Win).

Two checks before you start: confirm the RTP in the game's help screen, since some casinos run lower settings, and make sure the game is not excluded from bonus wagering. Click any card for the free demo, the specs and the complete bonus maths.

On each card, "35x cost" is the expected loss of wagering a $100 bonus 35 times on that slot; RTP and the volatility tag sit just above it. The spread on this page: $105.00 at the cheapest (Coin Flynn Deluxe), $105.00 at the dearest (Rush for Diamonds: Hold and Win). Volatility mix: 5 medium-volatility titles. Best wagering fit in this group: Coin Flynn Deluxe ($105.00), Buffalo Treasure: Hold&Win ($105.00) and Lady Lemon Fruits ($105.00). All demos are free and use play money; the cost figures only apply when you wager a real bonus.