Tank

A tank is slow, heavy and hits enormously hard, which makes it a completely different proposition from anything nimble - you're committing to a position rather than moving between them.

Tank 1944 is the most conventional of them, with a historical setting and armour that behaves as you'd expect. Artillery Vs Tanks is about arcs and trajectories rather than direct fire, which makes it closer to a puzzle. Tank Fury: Boss Battle 2D builds phases into a single large encounter, and Tank Strike Wasteland Rogue adds roguelike progression so a lost run still counts for something. They'll all punish you for moving without thinking, and that's what separates them from anything faster.

There are 6 free games under this tag, all playable in the browser with nothing to install, and they'll all punish you for moving without thinking first.

The wider shelf is Shooting games, and Combat Games collects everything built around a fight.