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91% positive of 199 · Very Positive · Live from Steam
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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.
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What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 91% on 2026-11-01 → 91% today (199 reviews)
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Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
The second post-launch update for Colony Siege is now available! This update adds the most requested feature: full barrier control! Also included is a significant Pounder buff, major rebalancing of the final mission, better alert sounds, and other fixes and im…
We are happy to announce the first post-launch update for Colony Siege, and it's a big one! The changes, improvements, and fixes are detailed below: GAMEPLAY: Riven Faithful transport now ejects 2 Saviors when destroyed. Increased Drone Trap range and reduced …
The seventh update for Colony Siege is here! This update adds two new missions, improved multiplayer, difficulty-based payments and bonuses, bug fixes, and more. Added two new missions: New Orting and Vega. Added in-game multiplayer join prompt. When placing a…
The sixth update for Colony Siege is here! This update adds a new mission, a new speed setting, improved performance, expanded view areas, bug fixes, and more. Added mission 20 - Hermes Internal engine rendering performance improvements. Mission Objective and …
The fifth update for Colony Siege is here! This update adds a new mission, new building and tower destruction effects, 64-bit support, and more! Added mission 19 - Artemis. Ported game engine to 64-bit for improved performance. Buildings and towers now fragmen…
The forth update for Colony Siege is here! This update adds a new mission, some important bug fixes, and an option for freely rotating the view. Added mission 18: Darla. Added option for freely rotating the view. All new missions now have an animated circle ar…
We are very excited to announce that COLONY SIEGE is now fully released! Additionally, a large new update is available. Thank you to our dedicated testers and supporters. From the early days of closed beta to today, you have encouraged us and offered countless…
We are very excited to announce that Colony Siege will be leaving Early Access on Monday, September 7th for its launch update! Early Testers Appreciated If you would like to help test the launch update prior to launch, please join our Discord Server for more i…
Works, but may need extra effort. Results from Valve's own testing.
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