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Geeky Alien
BOOMER

Screenshots

BOOMER screenshot 1
Demo Trailer trailerWatch trailer on Steam ↗

BOOMER

Wumbo Workshop LLC · Published by Wumbo Workshop LLC

Content notice: brutalized puppet like creatures.

Last updated 28 Sept 2026

A chaotic co-op horror game for up to 6 players. Scavenge eerie environments, feed your loot to a hungry steam engine, and pass Boomer between teammates in a deadly game of hot potato.

Free to PlayComing SoonDJCTQ 181 DLC available ↗Co-op

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Action, Adventure, Indie, Casual · More free games

About this game

Times have hit them pretty hard since they went off the air...

In BOOMER, you and up to to 5 friends must journey through The Understage, a scary place where discarded Wumpets get forgotten. How far can you get while avoiding monstrous foes, escaping the ominous fog and keeping your worst pal Boomer from blowing you all into little felt pieces! 

Get distracted? Get blown sky high!

Boomer's an anxious little fella, if you don't pass him off to a new person before his fuse reaches its bottom he'll explode, taking you with him and flying to find a new friend himself. 

Balance saving money with making progress!

The fog's coming so you only have so much time. Use the loot you find along your path as fuel to make it to the next station. Alternatively take a risk and bank it to increase the funds you'll have when you get there. 

Upgrades and items make your runs more interesting!

Purchase items from Telemachus the shopkeep to improve your stats and increase your capabilities. The Understage is a dangerous place where it helps to be prepared. 

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • OS: Windows 10 64-bit
  • Processor: i5-6300HQ
  • Memory: 8 GB RAM
  • Graphics: GTX 560
  • Storage: 2 GB available space

Recommended

Recommended:
  • OS: Windows 11 64-bit
  • Processor: i5-1135G7
  • Memory: 16 GB RAM
  • Graphics: GTX 1050
  • Storage: 2 GB available space

Supported Languages

English*
*languages with full audio support

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