Helium Rain
Released Oct 2018
Trade your wares and eliminate the competition in a cutthroat world. Buy new ships and stations to mine and haul resources. Explore the vast emptiness of space.
79% positive · 340 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to get it
Free on Steam
Evaluation
Deimos Games, the solo developer behind Helium Rain, officially announced on August 23, 2023 that the studio is shutting down. As part of that closure, Helium Rain was converted to a free-to-play title on September 1, 2023, and its source code was made open-source. The developer explicitly stated this was a farewell — thanking players and expressing that the project had run its course due to no longer having time for such work. No future content was promised or implied. The game remains purchasable (now free) on Steam. Development is definitively over, and the game is complete as of the free-to-play transition date.
Evidence
Developer announced Deimos Games is shutting down in 2023. Helium Rain will go free-to-play on September 1st and the source code is being open-sourced. The post is a farewell with no mention of any future content.
Helium Rain officially launched out of Early Access as a full 1.0 release on October 11, 2018.
Media
Details
Developer
Publisher
Deimos Games
Achievements
23
Platform
Windows, Linux
Controller
full support
Steam Deck
Playable
Players
Single-player
About this game
Build your fleet, trade, explore and conquer
Helium Rain is a single-player space simulation that places you at the helm of a spacefaring company. Trade resources, buy ships and stations to fulfill contracts ! Dock at stations to buy and sell you wares or upgrade your ship, upgrade your technology to be more efficient and militarize your fleet to prevent piracy.
You will need to master both real-time action and long-term strategy: destroying a freighter has a direct impact on the economy, while declaring war will make your spaceflight environment slightly more hostile...
- 13 playable ships with weapon and engine upgrades
Build and fly fleets of fighters, bombers, cargos, corvettes or capital ships. Buy new engines and weapons. - Fast-paced combat with Newtonian flight, localized damage and joystick support
There is no speed limit in Helium Rain. You can fly at half a mile a second while aiming backwards. Aim for critical systems in order to disable ships, kill their crew or capture targets, and don't fly into asteroids. - Complex economy model
Take advantage of a complex simulation of space trade to be the most competitive company. - A planetary system to explore
Explore around 25 sectors orbiting the gas giant Nema and its moons. - Procedural contracts, world exploration, technology upgrades
Pick contracts and build your empire to become the largest company. - Quick-action skirmish mode
Setup your fleet, pick an opponent and go into fighting action right away !

A world that feels real
Your ships have generators, radiators, weapons, engines, cargo bays or life support systems - they all work together. Every thruster on your ship plays a role. Aim for engines to pin down your enemies, or send them spinning around by destroying power stations. Most ships have more than thirty individual parts ! You can customize the most important parts of your ships - your main engines, attitude control thrusters, weapons and hull colors.
Your competitors are independent factions, companies with the same goal as yours - ruling the system. They will try to undercut you, or even attack you if you become a threat to them. But don't be too quick to destroy them, as war can break the supply of resources you depend on ! Attacking freighters will destroy resources, with the potential to cause an economic crisis.

Last evaluated Jun 27, 2026
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