Announcement
v1.0Game 1.0 optimization patch
“Endless Mode performance optimization: fixed severe frame drops caused by the Ice Crystal skill in Endless Mode.”
Steam
Swarm Survivor: Endless Siege
Also known as Swarm Survivor: Endless Siege, sses, steam:3745020
Swarm Survivors: Endless Siege is a light roguelike bullet-hell idle shooter. You play as the last survivor of the Swarm, fighting to stay alive under the endless siege of alien fleets. Build overwhelming power and face wave after wave of relentless challenges.
Last update
18 May 2026
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- May 2026
- Game 1.0 Patch UpdateOptimized game controls
- Game 1.0 UpdateAdded 4x speed; the game now supports 1x, 2x, 3x, and 4x speeds by default. More stat and attribute explanations, plus onboarding text prompts. New toggle for automatically picking up relic gems (normally all gems are c…
- April 2026
- Swarm Survivor: Endless Siege is now officially released!Explore brand-new planetary environments, experiment with diverse skill combinations, and power up with relics and gems. Take on Endless Mode and push your limits! Survive relentless assaults from alien warships! We wel…
- February 2026
- Demo 3.3 Update NoticeDemo 3.3 Update Notice Important Adjustments Added three relic preset loadouts. All equipment previously equipped on characters will be automatically unequipped and moved to the inventory. Relic appraisal has been moved…
- Fixed Second Planet Crash for Some PlayersSometimes the game needs to read numbers from text (like "2.5"). In some regions, the decimal point is written as . (dot), while in others it's , (comma). If the format doesn't match your system settings, the game might…
- Demo 3.1 Update NotesAdded an in-run progression system for Endless Mode (Values are still being adjusted and will continue to be updated over the next couple of days) Added a game statistics screen Various minor optimizations Upcoming Deve…
- January 2026
- Added Desktop Idle ModeCan be enabled in the Settings menu In Desktop Idle Mode, the game runs in a small window at the corner of the screen Hold the right mouse button to drag and move the window Steam post imageSteam post image
- Demo 3.0 Update NotesDemo 3.0 Update Notes I. Optimized UI and visual presentation II. Added Mutation and Gem Socketing to Relics III. Introduced the Gem System IV. Unlocked the base version of Endless Mode (in-run progression will be added…
- December 2025
- The January update will include many new achievements. The achievements in the previous demo were only temporary configurations and were not compatible with the new version, so they have been removed. Due to the extensi…Patch notes
- November 2025
- If your machine is experiencing lag issues, please take a look here.If your machine is experiencing lag, lower the resolution and reduce the in-game frame rate. Make sure not to set the frame rate to unlimited — it will eat up CPU like crazy. Doing this will greatly improve smoothness.…
- The developer hasn’t disappeared! Demo Update Coming in Early December!First of all, thank you so much for playing my game! Since the demo was released in August, many players have shown great support and really enjoyed it. However, since this is my first time developing a game, I discover…
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