Games like Space Conquest
Games like Space Conquest include Touhou Big Big Battle, Gensokyo Night Festival, Contractors, Witch It, and GORN. We matched them by the tags players give Space Conquest on Steam (Indie, Early Access, Casual, and Action): closest matches first, and among equally close ones the better-known games.

Touhou Big Big Battle
Shared: Early Access · Indie · Casual

Gensokyo Night Festival
Shared: Indie · Action · Casual

Contractors
Shared: Action · Indie · VR

Witch It
Shared: Indie · Casual · Action

GORN
Shared: VR · Action · Indie

Hard Bullet
Shared: Action · VR · Indie

Jet Island
Shared: Indie · Action · VR

G2 Fighter / 基因特工
Shared: Indie · Action · Casual

ShellShock Live
Shared: Action · Casual · Early Access

BOXVR
Shared: Indie · Casual · Action

VRChat
Shared: VR · Early Access · Casual

Shaolin vs Wutang
Shared: Indie · Casual · Action

SuperSmash: Physics Battle
Shared: Indie · Action · Casual

Timberman
Shared: Indie · Casual · Action

Into The Flames
Shared: Casual · Action · Indie

Notes of Soul
Shared: Action · Indie · Casual

Tower Unite
Shared: Casual · Indie · Action

Beat Saber
Shared: VR · Indie · Action

EmergeNYC
Shared: Early Access · Action · Indie

Bullet Roulette VR
Shared: Indie · Casual · Action

Pikuniku
Shared: Indie · Casual · Action

Accounting+
Shared: Indie · Action · Casual

COMPOUND
Shared: Indie · Action · VR

VR Dungeon Knight
Shared: Indie · Action · Early Access