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Assemble a ship from thousands of parts, wire its systems together, and take it to fifteen strange planets, alone or with friends.
Want something that feels competitive and fast-paced the way JetpacToo does? These games are a good place to start. You can bring friends along for most of these.
Build cars, tanks and planes from a huge library of blocks, then take them out into an infinite open world to mine, fight rival prospectors and grow your empire. Salvage parts from wrecks, craft your own, and build machines only you could have imagined.
Also in Co-op · Competitive, Replayable, Chaotic
In Planetes your aim is to survive, create and explore. You will need to harvest resources, in order to construct bases, spacecraft, and items. Protect yourself from other players by creating better spacecraft or a stronger base. Explore space, finding asteroids and planets to land on.
Competitive, Replayable, Chaotic
Crash-landed on an alien planet, you dig, build, farm and fight your way to a new home. Voxel terrain you reshape anywhere, a creator for vehicles and weapons, a 30-hour story, and aliens you can befriend or go to war with.
Replayable, Chaotic
Guardians Frontline is a sci-fi VR shooter that makes you a soldier and a commander. Fight off enemies and build bases in a single-player and co-op campaign, plus PvP game modes with full cross-play support.
Also in Co-op · Competitive, Fast-paced, Colorful
A tactical extraction shooter on a huge scale: jet suits, 400 km/h vehicles, four specialist classes, five AI factions and loot you can trade on the Steam Marketplace. Fast, tense and chaotic, built for squads who like plans falling apart in interesting ways.
Also in Co-op · Competitive, Fast-paced, Replayable
Procelio is a multiplayer vehicle builder/shooter set amidst a proxy war on the red planet. Build and refine your custom machines from orbit, then pilot them in a distant war against CPU and enemy players.
Competitive, Fast-paced, Replayable
UPDATE 28 AVAILABLE - Interstellar Marines is an immersive tactical sci-fi First Person Simulator in the making, offering a unique blend of tactical gameplay, dynamic environments and non-scripted AI. Play Singleplayer or Co-op/PvP on servers around the world.
Also in Co-op · Competitive
A PvPvE space shooter where your crew runs one ship: steer it, keep it fueled, board enemy vessels, sabotage their reactor and race rival prospectors to escape the Reach with the Artifact. Every match is a new procedurally generated map, so plans fall apart fast and winging it is half the fun.
Also in Co-op · Competitive, Fast-paced, Replayable
Extreme 2D physics action with detailed destruction of vehicles, robots, creatures, and your own Pioneer - now over ONLINE multiplayer! Quickly jump into a dozen different game modes hosted on free servers worldwide to battle, cooperate, race, and survive with/against other Pioneers all over the globe!
Also in Co-op · Competitive, Fast-paced, Replayable
You land on a dead red planet with one job: make it livable. You gather ore, build machines that add heat, pressure and oxygen, and watch puddles become lakes and moss become forest. Slow, calm survival crafting with a payoff you can see from orbit.
Also in Co-op · Replayable
Fast rounds, cover-based gunfights and dozens of co-op and PvP modes, including one where your head grows with every kill. Kill, die, repeat.
Also in Co-op · Competitive, Fast-paced, Replayable
Become one of the Hunters in Astro Hunters VR - PvPvE extraction shooter set in space. Explore a unique planet, fight with different enemies, craft, gather resources, and upgrade your weapons. But remember there are also other hunters on the planet. Will you ally, fight, or betray - it's up to you!
Also in Co-op · Competitive, Fast-paced, Replayable

Assemble a ship from thousands of parts, wire its systems together, and take it to fifteen strange planets, alone or with friends.

Procelio is a multiplayer vehicle builder/shooter set amidst a proxy war on the red planet.

Drop in with your squad, gear up fast, and fight your way back out of a match where every round goes sideways differently.

BattleGroupVR2 is a virtual reality real-time space strategy where you explore the galaxy and lead a fleet of powerful warships from the bridge of…

Climb into the cockpit of a 40-ton war machine. Built for VR, this mech simulator puts every switch, weapon, and system in your hands.

A free-to-play co-op sci-fi looter shooter where every mission changes the universe for everyone.

Run a space empire from the strategy map, then take direct control of a ship, robot or turret to fight the battle yourself.

Fly up to six ships through a shared universe of trading, treasure hunting and open war with other players.

Fly, repair and fight from a living spaceship, with room for three friends or an AI crewmate at your side.

The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind.

Build rockets, planes, cars and whole planets from parts you stretch, reshape and paint, then fly them with realistic physics.

Strap into a Grinder, fire up the ignition and take your seven-story mining mech into battle across the Serus system.

Scavenge floating islands for scrap, build a flying home, and piece together what happened to the last human outpost.

Assemble a ship from thousands of parts, wire its systems together, and take it to fifteen strange planets, alone or with friends.

Last Breath is a solo or online co-op survival game about bringing a dead planet back to life.

Procelio is a multiplayer vehicle builder/shooter set amidst a proxy war on the red planet.

Mine planets, assemble ships from parts and grow a trading empire with friends in an open galaxy.

A free-to-play co-op sci-fi looter shooter where every mission changes the universe for everyone.

A refugee capsule lands on an uninhabited planet. You have to survive, rebuild civilization and, if possible, regain control over the Earth.

Drop in with your squad, gear up fast, and fight your way back out of a match where every round goes sideways differently.

BattleGroupVR2 is a virtual reality real-time space strategy where you explore the galaxy and lead a fleet of powerful warships from the bridge of…

Fly, repair and fight from a living spaceship, with room for three friends or an AI crewmate at your side.

Fly, fight and sabotage your way across a shifting stretch of space, then escape with the loot before anyone else does.

A persistent real-time strategy MMO on one shared planet. Other players will come for your land while you sleep, unless your shield is up.