Screenshots
Watch trailer on Steam ↗Signs of Danger
Slow Rush · Published by Slow Rush · Official site ↗
Last updated 28 Sept 2026
Drop onto dangerously reactive alien planets where every pixel is physically simulated. Craft wild guns and abilities that melt, burn, freeze and blow up hostile creatures or destroy entire levels - solo or with up to three friends in chaotic 4-player online and couch co-op.
Free
Action, Indie · More free games
Explore Signs of Danger's reactive alien landscapes, crafting unique weapons that melt, burn, freeze, or explode enemies and environments. Collaborate in chaotic 4-player online or couch co-op with friends to survive the perilous challenges presented by this indie action gem.
About this game
Playtest Signup at slowrush.dev
About the Game
Team Up, then Blow Their Worlds UpFight through fully reactive pixel-physics alien worlds where everything burns, melts, shocks, and explodes.
Built for solo play or up to four-player online and couch co-op, so every disaster can be shared.
Per-pixel physics chaos meets multiplayer mayhem, turning every chain reaction into a shared disaster. Cascading explosions, melting terrain, volatile liquids, and unstable elements are now things you can unleash with friends - or onto them.
You are Convict Marines sent to unstable alien planets full of forbidden technology and dangerous relics - relics that the Imperial Empire insists do not exist. Redeem your honor by surviving your sentence and extracting with the relics - and try not to vaporize your squad.
Every world reacts at the pixel level. Fire spreads, liquids flow, electricity jumps, unstable chemicals explode, and exotic matter behaves unpredictably. One poorly-aimed shot can trigger a chain reaction that engulfs half the level.
Play solo or with up to three friends in seamless 4-player drop-in-drop-out online and couch co-op. Expect chaos: friendly fire, fast respawns, and even faster "accidents".
Decipher the Signs of Danger
Scavenge for alien Signs. Use that forbidden tech to craft, mutate, and overload your weapons and abilities. Experiment until you create game-breaking combos that should never be allowed in the hands of any marine.Build a shotgun that fires homing teleporting missiles. Dash through walls to liquefy enemies. Detonate a small personal nuke when you die. Release swarms of suicidal drones every time you take a hit. The right Signs will turn you into a one-person disaster zone.
But be warned: Signs behave differently depending on how they are combined with your weaponry. Careless experimentation can erase you, your squad, or the entire level. The line between godhood and catastrophe is very thin.
Features
- Fully reactive "falling sand" pixel-simulated levels set on alien planets.
- Chaotic online and couch co-op for up to 4 players.
- Wild weapon crafting by combining and stacking alien Signs.
- Defeat hordes of hostile alien creatures and powerful bosses.
- Physics-based destruction with fire, liquids, electricity, and chemical reactions.
- Game-breaking ability combos that change every run.
- Friendly fire, fast respawns, and constant "accidents".
- Randomized handmade levels filled with unpredictable chain reactions.
- Solo-friendly mode for experimentation and chaos.
System Requirements
Will my PC run this? →Minimum
Minimum:
- Requires a 64-bit processor and operating system
- OS: Windows 10 or 11
- Processor: Quad Core CPU
- Memory: 16 GB RAM
- Graphics: 1GB VRAM
- Storage: 2 GB available space
Recommended
Recommended:
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: More is better
- Memory: 32 GB RAM
- Graphics: 2GB VRAM, Nvidia 1080 or better
- Storage: 3 GB available space
Supported Languages
English*
*languages with full audio support
*languages with full audio support
Latest news
AnnouncementsOfficial
Making Signcrafting understandable with Socketing
Playtesters are loving the 'Signcrafting' (gun/ability upgrading mechanic) now, and they especially loooove the powerful guns they can make - once they "get" how it works.Except... almost nobody was "getting it" unless I was standing there right next to them to explain it. Uh oh.Turns out that most people don't think like programmers, so I completely reframed it into a more familiar metaphor: socketing!Read the full post over on the Slow Rush website.Read full article on Community Announcements (Caspar)AnnouncementsOfficial
Multithreading to use ALL your CPU cores, & time travelling for instant replays!
I have been neck deep in tedious engine work multithreading the heck of my custom falling sand engine - it's kinda difficult!But let's also talk about something GIF-friendly: time traveling!Read about it here: https://www.slowrush.dev/news/porting-performance-and-playback/Read full article on Community Announcements (Caspar)AnnouncementsOfficial
Making Drop In Multiplayer Easy
Signs of Danger has both online and local co-op.Remote players are controlled remotely (duh), but I gotta support multiple gamepads for local players, with an easy drop-in/drop-out flow.Still, when playing singleplayer, you should be able to seamlessly swap between keyboard & mouse to any gamepad controller and back again.Read the full post over on the Slow Rush website.Read full article on Community Announcements (Caspar)AnnouncementsOfficial
Signcrafting and Skill Trees
Most roguelites let you collect items to make overpowered builds, based on characters with some starting skills.But I want to go further than that.What if you could build your own whole skill tree? Let me show you Signcrafting!Read the full post over on the Slow Rush website.Read full article on Community Announcements (Caspar)AnnouncementsOfficial
1,000 wishlists in 48 hours! And what I'm working on next for this game.
I can't believe how well Signs of Danger has been received by everyone, especially given how rough the game is (and that my shoddy trailer-making skills meant that the trailer doesn't even really show any roguelite action - it's a wonder anyone "gets" the game at all).So I figured I'd write a few words to celebrate and to share what I'm working on next (yes, fixing up lighting is on the list, friends).Read the full post over on the Slow Rush website.Read full article on Community Announcements (Caspar)
