Games like Lazy Galaxy
Games like Lazy Galaxy include Cookie Clicker, A Game About Feeding A Black Hole, Dragon Cliff, Idle Champions of the Forgotten Realms, and Nodebuster. We matched them by the tags players give Lazy Galaxy on Steam (Idler, Indie, Strategy, Incremental, and Casual): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Idler · Incremental · Indie

A Game About Feeding A Black Hole
Shared: Incremental · Strategy · Indie

Dragon Cliff
Shared: Idler · Strategy · Incremental

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

Nodebuster
Shared: Idler · Incremental · Strategy

SPACEPLAN
Shared: Indie · Incremental · Casual

Deep Space Cache
Shared: Indie · Idler · Strategy

Keep on Mining!
Shared: Idler · Incremental · Casual

Human-powered spacecraft
Shared: Indie · Incremental · Idler

Cell to Singularity - Evolution Never Ends
Shared: Incremental · Idler · Casual

FTL: Faster Than Light
Shared: Strategy · Indie · Space

Plants vs. Zombies GOTY Edition
Shared: Strategy · Casual · Singleplayer

Click the Button
Shared: Indie · Idler · Casual

Timber Rush
Shared: Idler · Indie · Casual

Tower Wizard
Shared: Idler · Incremental · Strategy

To The Core
Shared: Incremental · Casual · Indie

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

Shelldiver
Shared: Incremental · Casual · Idler

IdleOn - The Incremental MMO
Shared: Idler · Incremental · Pixel Graphics

Game Dev Tycoon
Shared: Indie · Strategy · Casual

Cosmoteer: Starship Architect & Commander
Shared: Indie · Space · Strategy

Tooth and Tail
Shared: Strategy · Indie · Pixel Graphics

Bills Must Be Paid
Shared: Incremental · Strategy · Idler

TBH: Task Bar Hero
Shared: Idler · Indie · Pixel Graphics