Clustertruck

Clustertruck takes one of the oldest childhood living-room games and pushes it through a physics engine. The trucks are speeding. The drivers are bad. The floor is lava. Your job is to leap, roll, climb and improvise your way across the tops of the convoy without ever touching the road below — for as long as the convoy itself stays in one piece, which is generally not long.

The campaign mode introduces the formula gently and then turns adversarial. Swinging hammers, lasers, flamethrowers and walls of obstacles join the convoy as you progress, and the trucks start crashing into each other in ways that turn the highway into a temporary obstacle course. Unlockable abilities — a grappling hook, a truck cannon, full time-control — change the survival math entirely and reward players who want to chain difficult routes into seamless runs.

An in-game level editor and Steam Workshop support hand the keys to the community: anyone can build their own highway and share it, and the catalogue of player-made levels keeps growing. A replay system lets you watch your runs back, and online leaderboards rank the runs that actually held together. The whole game is small, fast and chaotic in equal measure — exactly what an idea this simple needs to be.