Games like Light 'Em
Games like Light 'Em include Nodebuster, Shelldiver, A Game About Feeding A Black Hole, Keep on Mining!, and Digseum. We matched them by the tags players give Light 'Em on Steam (Casual, Incremental, Idler, Space, and Relaxing): closest matches first, and among equally close ones the better-known games.

Nodebuster
Shared: Casual · Incremental · Idler

Shelldiver
Shared: Casual · Incremental · Idler

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

Keep on Mining!
Shared: Incremental · Casual · Idler

Digseum
Shared: Casual · Incremental · Idler

Cookie Clicker
Shared: Incremental · Idler · Casual

Fortune Mill
Shared: Incremental · Idler · Casual

Click and Conquer
Shared: Casual · Incremental · Idler

Space Rock Breaker
Shared: Casual · Incremental · Idler

Beltmatic
Shared: Casual · Sandbox · Idler

Scritchy Scratchy
Shared: Incremental · Idler · Relaxing

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

Loot Loop
Shared: Casual · Incremental · Idler

Plantera
Shared: Incremental · Idler · Sandbox

Vanguard Galaxy
Shared: Casual · Idler · Space

SpaceEngine
Shared: Casual · Space · Sandbox

Incredicer
Shared: Incremental · Casual · Idler

Melvor Idle
Shared: Casual · Idler · 2D

SPACEPLAN
Shared: Casual · Incremental · Space

Starvester
Shared: Incremental · Idler · Casual

Hook
Shared: Casual · Relaxing · Abstract

Fracture Field
Shared: Incremental · Idler · Casual

Fishing Inc
Shared: Casual · Incremental · Relaxing

Human-powered spacecraft
Shared: Casual · Incremental · Idler