Moddable

Build a city. Connect a region. Create a metropolis. Lay roads and railways, shape land use, and watch millions of residents transform the map through housing, jobs, travel time, and congestion.

A rhythm game where you hit the notes as they reach the sweetspot

Arcade air combat set in an alt-history Cold War gone hot in 1967, in a world where the strangest conspiracy theories turned out real. Fly three twelve-mission campaigns, one per faction, against targets on land, at sea, and in the air, with fully-voiced visual-novel scenes between sorties.

ProjectX is an extreme sports sandbox currently focused on mountain biking. Ride trails, experiment, customize your setup, and help shape an Early Access project built around feel, physics, and discovery. Requires a mod.io account and acceptance of the mod.io Terms of Use.

Build and run your own football club, starting in the lower leagues. Negotiate transfers, develop academy talent and decide where the money goes. Hire a manager to lead the team, or pick the line-up yourself.

Desktop buddy is an active sandbox companion game where you can paint, shoot, crush and decorate your very own ragdoll on your desktop. Use familiar paint tools to fully customize your desktop buddy to your liking so you can treat it well, or don't.

The world's first Movement Slasher! Block, counter, feint, and dismember. Grapple across the arena, wall-run, slide, and even climb into a giant stone golem. Everything that moves is a weapon: rocks, thrown swords, even your foe's severed leg. Also, fishing!

A football manager inspired by the classics of the 90s. Manage your club, sign and sell players, prepare tactics and experience matches through results, watch or interactive modes. Play solo or with up to four human managers and customize the game with the editor and patches.

Build the route. Break the machines. Recover your stolen energy cores. CENIZA is a 3D tower defense set in an industrial wasteland, with 100 waves, seven upgradeable tower families and colossal robotic bosses. Reshape the battlefield, then make it your own with mods.

Hide in plain sight as an invisible Ghost or hunt them down as a Hunter. Use the environment, your tools, and your wits to survive. Play with friends or strangers, and create and share custom content with Steam Workshop.

The Y-Files is a co-op sci-fi chaos for 1-4 players! Build your rocket on the fly, fight merciless physics, and escape planets before a local apocalypse. Meet the corporation's quota and reach the portal without smashing your crew against an asteroid!

Place instructions on a grid, plan the path, and let the machine follow your logic. CodeGrid is a programming puzzle game with no traditional coding required—use simple commands to build loops, conditions, and data processing, then create increasingly complex programs within a limited space.