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Swarm Survivor: Endless Siege header image
Released Apr 30, 2026 $2.99 · −40% Positive Not counted on Steam profiles yet

Swarm Survivor: Endless Siege

By kamen

Followers —
Reviews 27 Positive
Players now 0 Peak today 0
Followers, 30 days — Not enough history yet

About Swarm Survivor: Endless Siege

Swarm Survivor: Endless Siege is a game tagged Idler, Tower Defense and Bullet Heaven by kamen, released Apr 30, 2026. It has 27 Steam reviews (Positive). The Steam games most like it include Screen Survivors, 最后的仙门 The last Practice Sect and Sidebar Starship.

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.
From the Steam page

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Steam data

Everything Steam lists for Swarm Survivor: Endless Siege · record updated 1 hour ago

Steam store

Overview

App ID3745020
Release dateApr 30, 2026
Last change number40114064
Last record update1 hour ago

App info

App type
Game
Developer
kamen
Publisher
kamen
Steam profile
Not counted yet: Steam is still getting to know this game, so it doesn't add to game counts or achievement totals · checked 1 day ago
Franchise
survivor-like
Technologies
Unity detected

Platforms

Windows
Steam Deck
Playable

Features

4
Single-playerSteam AchievementsSteam CloudFamily Sharing

Related apps

Prices

Price · US$2.99
On sale40 of 41regions right now
Lowest seen · US$2.99Oct 23, 2026
Checked13 hours agoin 41 regions

BrazilR$BRL

Every price change is kept from Oct 23, 2026 on. Pick a region below to compare.

Patches

Patch notes

13
  1. May 7, 2026 Game 1.0 optimization patch

    “Endless Mode performance optimization: fixed severe frame drops caused by the Ice Crystal skill in Endless Mode.”

  2. May 3, 2026 Game 1.0 Patch Update

    Optimized game controls

  3. May 1, 2026 Game 1.0 Update

    1. Added 4x speed; the game now supports 1x, 2x, 3x, and 4x speeds by default. 2. More stat and attribute explanations, plus onboarding text prompts. 3. New toggle for automatically picking up relic gems (normally all gems are collected au…

  4. Feb 14, 2026 Demo 3.3 Update Notice

    Demo 3.3 Update NoticeImportant AdjustmentsAdded three relic preset loadouts. All equipment previously equipped on characters will be automatically unequipped and moved to the inventory.Relic appraisal has been moved to the inventory scree…

  5. Feb 2, 2026 Demo 3.1 Update Notes

    Added 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 screenVarious minor optimizationsUpcoming Development PlansFurther im…

  6. Jan 20, 2026 Demo 3.0 Update Notes

    Demo 3.0 Update NotesI. Optimized UI and visual presentationII. Added Mutation and Gem Socketing to RelicsIII. Introduced the Gem SystemIV. Unlocked the base version of Endless Mode (in-run progression will be added at the end of January)V…

  7. Dec 16, 2025 Demo 2.0 Update Notice

    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 extensive changes in Demo 2.…

  8. Nov 10, 2025 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 discovered that the original…

  9. Aug 20, 2025 📢 Dev Log Preview | Upcoming Update

    Before this Saturday, I’ll be releasing Version 1.31 with several important improvements:🔧 Optimizations & AdjustmentsWave progression & balancing updatesFurther increased game difficultySpore attributes nerfed for better balanceExpanded …

  10. Aug 17, 2025 Demo Version 1.3 Update Log

    Unlock 2x game speed when reaching the maximum of 500 wavesBasic optimizations

  11. Aug 14, 2025 Demo Version 1.3 Pre – Update Notes

    Relics of quality level 3 are now available. The background colors of previous quality 1 and 2 relics have been changed to base color and green (existing relic attributes remain unchanged; only the background color has been updated). Quali…

  12. Aug 11, 2025 1.3pre Version Update

    1. Added the initial version of the Relic System. Relics will randomly drop during waves, with Quality Level 2 relics dropping randomly after wave 200. Currently, there are only two qualities with limited attributes available. In the next …

Builds

1
BuildBranchUpdated
23147707publicMay 8, 2026

Depots

Depots

1
IDNameSystemsSizeDownloadManifest
3745021 — All 194.7 MB 87.8 MB 1781560799758661992

Branches

1
BranchBuildUpdatedAccess
public 23147707 May 8, 2026 Open

Configuration

Install foldersteamapps/common/Swarm Survivor Endless Siege

Launch options

1
ExecutableArgumentsSystemsDescription
Swarm_Survivor__Endless_Siege.exe Windows

Cloud saves

Space per player95.4 MB
Filesup to 500
Save locations3
RootPathPatternSystems
WinAppDataLocalLowKamen*.dataWindows
WinAppDataLocalLowKamen*.data.bakWindows
WinAppDataLocalLowKamen*.data2Windows

Achievements

Achievements420 hidden
Most unlocked96%Hive Memory
Rarest11.7%Perfect Hive

Global unlock rate

share of players who have it
  • Hive Memory Complete Story Mode 96%
  • Hatching Complete a run 90.7%
  • First Prey Defeat a Boss for the first time 84%
  • Survival Instinct Successfully survive once 83.8%
  • Rapid Evolution I Reach level 50 in a game 81.9%
  • New Planet Enter a new planet 71.8%
  • Devouring Firepower I Deal a total of 1000000 damage 70.5%
  • Life Continuation I Survive for a total of 60 minutes 55.4%
  • Rapid Evolution II Reach level 70 in a game 53.8%
  • Awakening Swarm Growth enhanced 100 times 50%
  • Adaptive Form Switch character once 49.9%
  • Autonomous Hunt Successfully survive in Auto Mode 44.8%
  • Devouring Firepower II Deal a total of 10000000 damage 42.7%
  • Critical Strike I Land 50000 critical hits 42.5%
  • Hive Essence I Obtain a total of 20000 Hive Essence 41.8%
  • Rend the Fleet I Destroy a total of 100000 enemy ships 41.1%
  • Awakening II Swarm Growth enhanced 300 times 39.9%
  • Relic Enhancement Upgrade any relic once 39.6%
All 42 achievements
  • Devouring Firepower III Deal a total of 30000000 damage 34.9%
  • Relic Socketing Socket a crystal into any relic 34.9%
  • Life Continuation II Survive for a total of 300 minutes 34%
  • Relic Collection I Obtain a total of 500 relics 33.9%
  • Hive Essence II Obtain a total of 60000 Hive Essence 31.9%
  • Rapid Evolution III Reach level 100 in a game 30.2%
  • Awakening III Swarm Growth enhanced 800 times 29.6%
  • Relic Collection II Obtain a total of 800 relics 29.4%
  • Critical Strike II Land 300000 critical hits 28.4%
  • Relic Mutation Trigger a mutation on any relic 26.4%
  • Rend the Fleet II Destroy a total of 300000 enemy ships 25.8%
  • Hive Essence III Obtain a total of 150000 Hive Essence 25.4%
  • Starfield Expansion Unlock all maps 24.9%
  • Critical Strike III Land 800000 critical hits 23.4%
  • Endless Departure Complete an Endless run settlement for the first time 23.2%
  • Relic Collection III Obtain a total of 1500 relics 22.1%
  • Endless Stand Survive 1200 seconds in a single Endless run 21.4%
  • Intermediate Difficulty Complete survival on Difficulty 2 21.2%
  • Endless Stand II Survive 2400 seconds in a single Endless run 21.1%
  • Endless Stand III Survive 3600 seconds in a single Endless run 20.5%
  • Advanced Difficulty Complete survival on Difficulty 3 18.1%
  • Rend the Fleet III Destroy a total of 500000 enemy ships 17.6%
  • Life Continuation III Survive for a total of 800 minutes 17.6%
  • Perfect Hive Complete all achievements 11.7%

News

  1. Apr 30, 2026 · Community Announcements 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 ali…

  2. Feb 5, 2026 · Community Announcements Fixed Second Planet Crash for Some Players

    Sometimes 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 sett…

  3. Jan 21, 2026 · Community Announcements Added Desktop Idle Mode

    Can be enabled in the Settings menuIn Desktop Idle Mode, the game runs in a small window at the corner of the screenHold the right mouse button to drag and move the window

  4. Nov 23, 2025 · Community Announcements 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 …

  5. Sep 9, 2025 · Community Announcements Announcement on Game Progress Revamp

    After the revamp was completed the week before last, the goal was to make the game more roguelike. However, it turned out that the gaming experience became worse.Therefore, the game process has been …

  6. Aug 14, 2025 · Community Announcements Upcoming Character Attribute Updates – Feedback Wanted!

    If all goes as planned, these new attributes will be ready by Saturday, with some entering the Relic System on Sunday. Let us know what other attributes you’d like to see!Increased relic drop rateLon…

  7. Aug 10, 2025 · Community Announcements version 1.3 will be delayed until tomorrow evening.

Data from public Steam pages, updated daily; 5 days of history. LaunchRivals is not affiliated with Valve or Steam.