1 October, 1979: Unidentified forces presumed of extraterrestrial origin arrive in Earth orbit. Panic spreads across the globe as attempts at communication fail and attempts to engage the invaders are met with heavy losses and little success.




Browse 1,440 Steam Games and Add-ons on AlternativeTo including popular Steam options.
1 October, 1979: Unidentified forces presumed of extraterrestrial origin arrive in Earth orbit. Panic spreads across the globe as attempts at communication fail and attempts to engage the invaders are met with heavy losses and little success.




Lifeline is a playable, branching story of survival against all odds. Using your device, you will help Taylor make life or death decisions, and face the consequences together.




Explore a randomly generated Galaxy populated with factions, enemies, missions, and items providing you with a unique experience each time you play.



3D modelling software for artists. An easy to pick up, fast, non-technical modelling tool, ideal for first time 3D modellers. Draw in 3D, Sculpt and Paint.




Discover the simple joy of platforming in this bright, fun and surprise filled 3D game full of variety, peril and smiles around every corner! Featuring over 40 unique stages and full controller support including Bluetooth gamepad support on mobile devices.




Crossout is a massively-multiplayer game of mechanic combat in a post-apocalyptic world. Craft your own battle machine from scores of interchangeable parts and drive them into combat with other players in online PvP battles.




Quintet is a cooperative, cross-platform, multiplayer sci-fi game where players control the same ship through 5 roles: Captain, Helm, Tactical, Engineering and Science.




They Are Billions is a survival real-time strategy game where the player builds and defends a colony against swarms of zombies that threaten to destroy what is left of humanity. The game includes a series of campaign story missions, as well as randomly generated survival maps...








Starbase is a hybrid voxel/vertex-based space MMO with a fully destructible and infinitely expanding universe, with a focus on building and designing spaceships and stations, exploration, resource gathering, crafting, trading, and combat.




This war has been going on for a long time, and it's hard to say when it will be over. We got so used to it that news from Syria has become trivial. We've even already forgotten how it all started, and where the roots of the terrible terror lie – the terror that swept...



Dungeon of the Endless is a Rogue-Like Dungeon-Defense game, in which the player and their team of heroes must protect the generator of their crashed ship while exploring an ever-expanding dungeon, all while facing waves of monsters and special events as they try to find their...




Shovel Knight is a sweeping classic action adventure game with awesome gameplay, memorable characters, and an 8-bit retro aesthetic created by Yacht Club Games. You play as the eponymous Shovel Knight, a small knight with a huge quest.




CUR3D, the first real 3D printing prepress, will revolutionize your workflow with 3D printers. No matter what type of vision models you want to print, CUR3D will revolutionize, accelerate and simplify your work with 3D printers.




Start making your own multi-platform video games right NOW, even if you know nothing about game programming or scripting! TyranoBuilder’s suite of intuitive drag-and-drop tools allows you to create high quality visual novels with speed and ease, and bring your creativity visions...


Unmechanical is an award-winning 2.5D side-scroller which combines tricky puzzle solving, alluring exploration, and an engrossing atmosphere. The game had humble beginnings as a student project and since then both game and team has grown.




Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.


AdVenture Capitalist is an idle videogame where you take the role of an investor, investing money. Once it is running and investments have been made, you will receive money even if the game is not running the next time you log in.




In the world of Majesty, you are the ruler of the Kingdom. Your rule is not absolute, however, as you face subjects that are independent and stubborn. They will need a great deal of persuasion before they carry out your wishes.




The perfect game to back-stab your friends. Project Winter is an 8 person multiplayer game focusing on social deception and survival. Communication and teamwork is essential to the survivors’ ultimate goal of escape.




Spelunky is a unique platformer with randomized levels that offer a challenging new experience each time you play. Journey deep underground and explore fantastic places filled with all manner of monsters, traps, and treasure.




Provides many utilities for steam inventory and market (offers notification, quick selling, buying, offering trades, price check...).




Broforce is a hyperviolent action platform game. It features 90's blockbuster movie action heroes making up the Broforce team- an under-funded vigilante paramilitary organisation – saving the world from satanic alien terrorist investment banker businessmen in non-stop, fast...




Prey casts players aboard space station Talos I in the midst of an experiment gone awry. The station is overrun by hostile aliens and players must survive using mind-bending powers and weaponry as the fate of humanity is at hand.




Marmoset Hexels™ is a grid-based painting tool for vector art, pixel art, design, and animation. A geometric canvas grid lets artists create complex pixel and vector designs with the stroke of a brush.



