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Drive a tank, shoot shapes for XP, spend points on a build. Dozens of tank classes branch off a single tree, and the best players know every matchup. 2016, Matheus Valadares.
Diep.io is a free top-down shooters io game (classic, upgrade-tree, free-for-all, teams). Tanks, planes, ships and flails seen from above. Most of them owe something to Diep.io's upgrade tree. It ran when last checked, on 2026-09-16.
The game loads from diep.io in a frame. Its own terms, privacy policy, ads and accounts apply inside it, and a save made here is separate from one on diep.io. If you already have progress there, open the game on its own site. How the frames work.