← Pick a different game

Loved Colony Siege? You'll love these

About Colony Siege

Colony Siege

Deck Playable
$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
91% of 199

Colony Siege combines the best of RTS and tower defense, including base building, mazing, and unit physics. Defend Earth's remaining colonies using an arsenal of deadly weapons to torch, slice, throw, and impale swarms of alien invaders.

If you loved these, you'll love this

No game lists Colony Siege as one of its co-op favourites yet, so here are the closest matches by Steam tags instead.

Particula

Deck Playable
−95%
$$
Released
Price
$$ · Standard · On sale −95% until 23 Oct
Players
👥 Up to 3 players
Reviews
70% of 646

Destroy negativity, clear your mind! Particula brings you a new perspective in gaming, helping you to concentrate and relax. A three players co-op tower defense experience with a relaxing soundtrack, smooth visuals and gameplay.

If you loved these, you'll love this

EDYN

Deck Playable
Free
Released
Price
Free
Players
👥 Not stated
Reviews
70% of 50

Join the battle for EDYN, the ultimate multiplayer strategy game. Build settlements, command armies, and unify the realms in epic PvP warfare to etch your legacy into history. Raid, loot, make alliances, and unite to conquer the planet itself, with no Pay-To-Win mechanics to upset the playing field.

If you loved these, you'll love this

Conan Unconquered

Deck Playable
$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
70% of 1,204

From the Command & Conquer veterans at Petroglyph comes the first ever survival RTS set in the savage world of Conan the Barbarian. Play solo or team up in multiplayer in Conan Unconquered’s action-packed co-op Mode where you build a shared stronghold and fend off the hordes together.

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
50% of 8

Crumbled World is a tower defense game where you're tasked to create a maze of defensive structures with the purpose to defend the world crystal. The world crystal is what keeps the world from further collapsing into darkness and without it no hope exists. Your missions is to defend different areas using knowledge and abilities gathered to adapt to new challenges.

If you loved these, you'll love this

Minds of Nations

Deck PlayableCrossplay
$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
50% of 6

Grand Strategy Game. How does reincarnation affect the evolution of a state ? Control the material well-being of your country with a backbone of spiritual growth. Religion. Economy. Diplomacy. War. Souls. Karma. Ideology. Tech. Stories. Single-Player. MMO.

If you loved these, you'll love this

Zero-K

Crossplay
Free
Released
Price
Free
Players
👥 Not stated
Reviews
93% of 4,409

With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps.

Forged Battalion

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 Up to 7 players
Reviews
62% of 786

Customize your unique faction in a new take on real-time strategy as you fight in a variety of skirmish, solo, and multiplayer battles.  You are not only a commander, but also an engineer – so you have ultimate control over your faction’s units, factories, superweapons and economy.