Games like Neon Space 2
Games like Neon Space 2 include Caster, Rock 'N' Roll Defense, Plebby Quest: The Crusades, Achievement Clicker, and Notes of Soul. We matched them by the tags players give Neon Space 2 on Steam (Action, Indie, Casual, Strategy, and Adventure): closest matches first, and among equally close ones the better-known games.

Caster
Shared: Action · Indie · Casual

Rock 'N' Roll Defense
Shared: Action · Casual · Strategy

Plebby Quest: The Crusades
Shared: Indie · Casual · Strategy

Achievement Clicker
Shared: Casual · Indie · Action

Notes of Soul
Shared: Action · Indie · Adventure

SMITE 2
Shared: Action · Strategy · Adventure

Pikuniku
Shared: Indie · Casual · Adventure

UFO 50
Shared: Indie · Action · Strategy

RADical ROACH Remastered
Shared: Action · Indie · Casual

Lost
Shared: Casual · Indie · Action

BEEP
Shared: Indie · Adventure · Action

Idle Champions of the Forgotten Realms
Shared: Strategy · Adventure · Indie

Overdungeon
Shared: Indie · Strategy · Casual

Han Xiongnu Wars
Shared: Action · Strategy · Indie

[Chillas Art] Stigmatized Property
Shared: Indie · Casual · Action

Kingdom Rush - Tower Defense
Shared: Strategy · Action · Casual

Cyberhunt
Shared: Action · Indie · Casual

Juicy Realm
Shared: Action · Indie · Adventure

ShellShock Live
Shared: Action · Strategy · Casual

Dead Age
Shared: Strategy · Casual · Action

Wobbly Life
Shared: Adventure · Action · Casual

Sometimes: Success Requires Sacrifice
Shared: Indie · Action · Casual

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Indie

Orcs Must Die! 2
Shared: Action · Strategy · Indie