Games like Rock Island
Games like Rock Island include Cookie Clicker, (the) Gnorp Apologue, Keep on Mining!, Bills Must Be Paid, and Fracture Field. We matched them by the tags players give Rock Island on Steam (Incremental, Idler, Roguelite, Mining, and Strategy): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Incremental · Idler · Casual

(the) Gnorp Apologue
Shared: Incremental · Idler · Strategy

Keep on Mining!
Shared: Incremental · Idler · Mining

Bills Must Be Paid
Shared: Incremental · Roguelite · Strategy

Fracture Field
Shared: Incremental · Idler · Mining

Shelldiver
Shared: Incremental · Idler · Casual

Timber Rush
Shared: Idler · Casual · Incremental

Tower Wizard
Shared: Incremental · Idler · Strategy

A Game About Feeding A Black Hole
Shared: Incremental · Idler · Casual

Fortune Mill
Shared: Incremental · Idler · Pixel Graphics

Scritchy Scratchy
Shared: Incremental · Idler · Roguelite

Dragon Cliff
Shared: Idler · Incremental · Strategy

Dwarf Eats Mountain
Shared: Incremental · Idler · Mining

Incredicer
Shared: Incremental · Idler · Casual

Idle Champions of the Forgotten Realms
Shared: Idler · Incremental · Strategy

Digseum
Shared: Incremental · Idler · Casual

Nodebuster
Shared: Incremental · Idler · Strategy

Click the Button
Shared: Incremental · Idler · Casual

Keep on Mining! - Worlds
Shared: Incremental · Idler · Casual

Orb of Creation
Shared: Incremental · Strategy · Casual

Wall World
Shared: Roguelite · Mining · Pixel Graphics

Balatro
Shared: Strategy · Roguelite · Pixel Graphics

Starvester
Shared: Incremental · Idler · Strategy

Melvor Idle
Shared: Idler · Casual · Mining