Summary:

Spin Tactics is a roguelike engine-builder set inside a slot machine. Each spin fills the board with coloured symbols, and connecting three or more of the same colour makes a combo. Gems change a symbol's colour, timing or effect for the rest of the run. More than 90 Companions can be equipped in eight slots, and their order matters, since some boost or copy the Companion next to them. Unwanted Companions, symbols and Gems can be sold in the Black Hole for gold. Each encounter has a score goal and a limited number of Actions, and bosses work against the player. Between runs, credits unlock Chips and Portals that change the starting hero. Runs take 30 to 60 minutes and end on an online leaderboard. There is no real-money gambling and no microtransactions.