Arras.io

Arras.io is a fanmade spinoff to Diep.io. Itself a quite popular game among the Diep.io community, Arras.io has several gamemodes and adds many tanks, bosses, and several shapes to its predecessor. A fanmade spinoff of this game, Woomy-Arras.io, is the most complex .io game ever made. Arras.io has about 3000 monthly players.

Gameplay
This section will only mention the additions to the original game as it is a spinoff of another game.

Gameplay is similar to Diep.io; one must upgrade their stats and their tank to fight others in the arena. However, since Arras.io is still in Beta, and has been for years, it still allows users to level up using the N key. The top upgrade level is again level 45, but the level continues to increase, allowing for large scores to be proportional to levels.

Upgrades
Arras.io rearranges the tank stats and adds three more upgrade rows.

Shapes
Arras.io adds eggs, sentries, and beta pentagons and modifies crashers.

Tanks
Arras.io adds a number of unique tanks.

Bosses
Arras.io adds a number of unique bosses.

Gamemodes
Arras.io overhauls the gamemodes and includes unique gamemodes such as 4 Teams Maze Domination and Boss Rush (this was intended to be an event, but the community voted for it to replace another gamemode).