Sci-fi

An idle defense game at the bottom of your screen. Build your squad, upgrade your base, and hold the line against relentless alien waves while you work or browse.

Defend the last citadel on a dying alien world. Summon a gacha collection of bio-engineered defense towers, forge a custom loadout, and conquer three modes, story-driven Chronicle, roguelite Contracts, and 1v1 PvP Ascension. Tower defense meets deck-building meta-progression.

Free online 2D space combat with PvPvE. Pick a faction, upgrade your ship and take on other pilots and hostile fleets in PvP, wave-based wormholes, bosses, weekly events and clan wars across more than 20 maps.

In THE DESCENDANT, the end of the world is only the start. With what remains of humanity protected in underground Ark facilities, your mission is to keep survivors alive, while discovering a far greater conspiracy buried within Ark-01.

Complete the exciting Mega Man X saga with four action-packed titles! This collection showcases the evolution of the series with Mega Man X5, Mega Man X6, Mega Man X7, and Mega Man X8. Test your skills in the new X Challenge mode, which pits players against two deadly bosses at once.

Time for your toughest mission yet! Recruit and train your crew to tackle the growing threat from alien and android armies as you defend Earth to become a Galactic Legend in Space Crew: Legendary Edition. All new content free to existing owners of Space Crew!

An action roguelite game with alien swarms and mechs. Battle enemies to make your way through a mass of spreading and evolving cells hosting dormant enemies. Collect a variety of game-changing skills and upgrades to create unique builds.

Avium is a sci-fi action-adventure RPG in a city ruled by those of great cybernetic wealth and influence, such as the Big Four. A Plutocracy, a "banana republic" that keeps its peace with the employment of Vigilantes like you, Diezel, a War-Suit donning, crime-fighting hero with a dark past.

Bioweaver is an RPG game with the main content of treasure hunting and character building. You can use basic programming logic to deeply customize your skill sets, and you can also create organs with different attributes and functions with the special crafting system.

Build your defense base to fight back the undead hordes of Mars and secure the future of the red planet. MarZ is a game of strategy and tactical defense where you must carefully manage your crew and resources as you try to uncover the terrible secrets of the undead.

Weird Worlds: Return to Infinite Space is a hybrid roguelike game of space exploration, adventure and starship combat.

Battle through demon-infested lands in this fast-paced rogue-lite bullet-heaven. Pick unique weapons with powerful evolutions, and hunt down ancient demons in intense boss fights. Loot, upgrade, and unlock new ways to grow stronger after every hunt!