Games like TerraCube
Games like TerraCube include FTL: Faster Than Light, Waveform, Aliens: Dark Descent, Battlefleet Gothic: Armada 2, and Nubby's Number Factory. We matched them by the tags players give TerraCube on Steam (Strategy, Real Time Tactics, Arcade, Puzzle, and Sci-fi): closest matches first, and among equally close ones the better-known games.

FTL: Faster Than Light
Shared: Strategy · Space · Sci-fi

Waveform
Shared: Puzzle · Strategy · Indie

Aliens: Dark Descent
Shared: Strategy · Real Time Tactics · Sci-fi

Battlefleet Gothic: Armada 2
Shared: Strategy · Real Time Tactics · Space

Nubby's Number Factory
Shared: Strategy · Arcade · Roguelike

Defy Gravity Extended
Shared: Puzzle · Space · Indie

Vampire Survivors
Shared: 2D · Indie · Arcade

Heat Signature
Shared: Space · Strategy · Indie

Planetary Annihilation: TITANS
Shared: Strategy · Real Time Tactics · Sci-fi

Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Strategy · Space

STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Sci-fi · Space

Battlefleet Gothic: Armada (Classic)
Shared: Strategy · Space · Sci-fi

Crying Suns
Shared: Strategy · Space · Sci-fi

Children of the Sun
Shared: Strategy · Arcade · Real Time Tactics

Zuma Deluxe
Shared: Arcade · Puzzle · Strategy

Iron Marines
Shared: Strategy · Sci-fi · 2D

Shadow Tactics: Blades of the Shogun
Shared: Strategy · Real Time Tactics · Indie

Peggle Deluxe
Shared: Arcade · Puzzle · 2D

Into the Breach
Shared: Strategy · Puzzle · Indie

Balatro
Shared: Strategy · Singleplayer · Roguelike

Zup! S
Shared: Puzzle · 2D · Indie

Mini Metro
Shared: Strategy · Puzzle · Indie

Stellaris
Shared: Strategy · Space · Sci-fi

Plants vs. Zombies GOTY Edition
Shared: Strategy · Singleplayer · 2D