Games like Breachline
Games like Breachline include FTL: Faster Than Light, Minimalist Tower Defense, Creeper World 3: Arc Eternal, Plants vs. Zombies GOTY Edition, and Bloons TD 6. We matched them by the tags players give Breachline on Steam (Strategy, Tower Defense, Real Time Tactics, Sci-fi, and Singleplayer): closest matches first, and among equally close ones the better-known games.
FTL: Faster Than Light
Shared: Strategy · Sci-fi · Singleplayer
Minimalist Tower Defense
Shared: Strategy · Tower Defense · Real Time Tactics
Creeper World 3: Arc Eternal
Shared: Strategy · Tower Defense · Singleplayer
Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · Singleplayer
Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer
Oxygen Not Included
Shared: Singleplayer · Strategy · 2D
Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Singleplayer · Strategy
Taur
Shared: Strategy · Tower Defense · Sci-fi
Kingdom Two Crowns
Shared: Tower Defense · Strategy · Singleplayer
RimWorld
Shared: Strategy · Singleplayer · Base Building
Dome Keeper
Shared: Singleplayer · Sci-fi · Tower Defense
GemCraft - Chasing Shadows
Shared: Strategy · Tower Defense · Singleplayer
Mindustry
Shared: Tower Defense · Strategy · Base Building
Infested Planet
Shared: Strategy · Tower Defense · Singleplayer
Aliens: Dark Descent
Shared: Strategy · Real Time Tactics · Sci-fi
DG2: Defense Grid 2
Shared: Strategy · Tower Defense · Sci-fi
Planetary Annihilation: TITANS
Shared: Strategy · Real Time Tactics · Singleplayer
Kingdom Rush - Tower Defense
Shared: Strategy · Tower Defense · Singleplayer
Heat Signature
Shared: Strategy · Top-Down · Indie
Kingdom Rush Frontiers - Tower Defense
Shared: Strategy · Tower Defense · Singleplayer
Dungeon Warfare
Shared: Strategy · Tower Defense · Singleplayer
Kingdom Rush 5: Alliance TD
Shared: Strategy · Tower Defense · Singleplayer
Defense Grid: The Awakening
Shared: Strategy · Tower Defense · Sci-fi
Space Pirates and Zombies
Shared: Strategy · Sci-fi · Indie