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Explore the mystery of the mysterious cube at the center of Boulder Island, dig out endless treasures, wake up the sleeping little boulder people, and lead them to create prosperity!
Game modes: Single player
Right now the lowest price for Rock Island we're tracking is $4.79 at Steam. We compare 1 store and prices refresh every few minutes.
The lowest price we've recorded for Rock Island is $4.57 at Kinguin on July 6, 2026. The current best price is about 5% above that low.
70% of 259 Steam user reviews for Rock Island are positive ("Mixed").
Rock Island released on May 29, 2026.
Rock Island is available on PC (Microsoft Windows). It supports single player.
Rock Island last hit a new low of $4.57 on July 6, 2026 at Kinguin. Current best price is $4.79. Prices on this page refresh every few minutes, so check back around seasonal sales for new lows.
The cheapest Rock Island price right now is $4.79 at Steam.
| Store | Discount | Price | Buy link |
|---|---|---|---|
 SteamBest price | -20% | $4.79 | Buy Rock Island at Steam |
All-time low: $4.57 at Kinguin on Jul 6, 2026 — the current best price is 5% above it.
Prices in USD, refreshed every few minutes. Switch currency on this page for EUR/GBP/BRL and more.
