Games like Planetary Inc.
Games like Planetary Inc. include Cookie Clicker, Nodebuster, Shelldiver, Banana, and Digseum. We matched them by the tags players give Planetary Inc. on Steam (Casual, Idler, Collectathon, Incremental, and Simulation): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Idler · Casual · Incremental

Nodebuster
Shared: Casual · Incremental · Idler

Shelldiver
Shared: Casual · Incremental · Idler

Banana
Shared: Incremental · Casual · Idler

Digseum
Shared: Casual · Idler · Incremental

Click the Button
Shared: Casual · Idler · Incremental

Keep on Mining!
Shared: Idler · Casual · Incremental

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

Bills Must Be Paid
Shared: Incremental · Idler · Casual

Scritchy Scratchy
Shared: Idler · Incremental · Simulation

Loot Loop
Shared: Casual · Incremental · Idler

Game Dev Tycoon
Shared: Casual · Simulation · Management

Chef Knight
Shared: Casual · Incremental · Simulation

Kiwi Clicker - Juiced Up
Shared: Casual · Incremental · Idler

Click and Conquer
Shared: Casual · Incremental · Idler

Dragon Cliff
Shared: Idler · Casual · Incremental

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

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

Tiny Pasture
Shared: Idler · Casual · Incremental

Incredicer
Shared: Idler · Casual · Incremental

Budgie's Bug Shop
Shared: Casual · Idler · Simulation

IdleOn - The Incremental MMO
Shared: Idler · Incremental · Management

Space Rock Breaker
Shared: Casual · Incremental · Idler

Deep Space Cache
Shared: Casual · Incremental · Idler