Developer

The Developer is a unclassed tank in Diep.io that was originally part of the cheats suite made by the developer himself, Zeach. He stated that he "accidentally" left the cheats without a password, so some people could have exploited the developer mode to get a really big tank or developer cheats.

The only confirmed report is the Fourth Report(s) - October 3rd

Characteristics
Characteristics usually include:
 * Going offline really quickly
 * Large
 * On the leader board
 * Purple
 * In Sandbox

Confirmed Reports
Fourth Report(s) - October 3rd

The fourth report which seems to be unedited shows a big developer tank messing around. Even if it wasn't the developer, it proves the huge tanks and trolling hackers.

First Report(s) - August 28th
The first reports of this tank were on August 28th, when it mysteriously appeared in a server with few people. They said he was a huge tank with a yellow name "Developer" above it. They said it was a Machine Gun, then became a Sprayer, then a Stalker, and eventually left.

Second Report - August 29th
This day, the developer of Diep.io says that he accidentally left some developer cheats without a password. It is still unknown if this has been patched or not.

Third Report(s) - September 4th
Right when Sandbox mode launched, people said to be finding unknown (likely Stalker) invisible entities with apparently infinite health, and when they ram into it, they get killed and the object is still invisible. The death screen said "You were killed by Developer". Apparently by cheating, as when there are more than 2 people in a sandbox server, God Mode is disabled. When they checked back 5 minutes later, it was very laggy and the game froze.

This sighting may be edited, as the player in it managed to toggle God Mode when multiple players were in the server.

Fourth Report(s) - October 3rd
The fourth report which seems to be unedited shows a big developer tank messing around. Even if it wasn't the developer, it proves the huge tanks and trolling hackers.

Developer Password?
There have been other reports / claims of the developer mode password. Ever since the developer claimed that he forgot to password protect cheats, many people have been seeking for the 'password' or ways to get into the developer mode.

Trivia

 * These Developer Cheats are likely the Sandbox cheats.
 * The Developer was probably testing them, in purpose to make and release the future game mode.


 * There were only a few sightings of the Developer as it was 1 person / entity among (quite a lot) of servers.
 * Tutorials pertaining to the Developer may not / may be fake! Take everything with a grain of salt!