Free bonus-buy slots (86)
Play these slots for free and explore their features in demo mode. These slots are tagged with a bonus-buy option in the Spinotter catalogue. Where the option is enabled, it lets a player pay to enter a specified feature instead of waiting for its normal trigger. The tag describes a game capability, not a promise that the buy is offered in every demo, casino or market. The feature and its price must be checked in the version actually available to you.
Spinotter currently lists 86 slots with a bonus buy feature. 85 have recorded RTP data, and the highest recorded default RTP in this collection is 97.17%.
This collection includes 24 dated source records. The most recent verification was August 31, 2026.
Read the cost before entering a feature
A buy is a separate paid wager, often priced as a multiple of the selected base stake. Check the total amount shown by the game, the feature that the purchase starts and any difference between available buy options. The paytable may also explain how the same feature is reached through ordinary spins. Do not treat the words ‘free spins’ in a feature name as meaning that a purchased entry has no cost.
A shortcut does not guarantee a return
Paying to enter a bonus changes how you reach that feature; it does not guarantee a win or recover the purchase price. Some games disclose different RTP figures for different modes, so compare the figures in the in-game rules rather than assuming the base-game percentage applies to a buy. Availability can vary, and the catalogue tag alone cannot confirm the option in your market. Set a spending limit before play and avoid repeating purchases to chase a loss.