April Fool's Day

April Fool's Day is an annual tradition on 1 April consisting of practical jokes and hoaxes. On this day, troll vanilla maps play much more frequently.

In France, April Fool's Day is known as "Poisson d'Avril", translating to "April Fish", which is the origin of Fishing events.

2011[]

Fishing 2011

2012[]

Fishing 2012 and Fishing 2012 enigma

2020[]

A_new_challenge_awaits! — A new challenge awaits!

Melibellule announced Transformice 3D.

2021[]

Melibellule shared a new video of Transformice 3D, set to launch in 2022.
The Flash Squad asked players on Discord to vote for a fur to be released on 22 April. The options were demon goth milkman fur, chibi mascot fur and the rockerz fur.
A moderator hosted a giveaway on Discord where 4 players would become a moderator.
The Spanish translation of « LIGHTNING »⁽⁷¹⁾ (« RELAMPAGO »⁽⁷¹⁾) was changed to « REMPÁLAGE »⁽⁷¹⁾.
The BR/PT staff announced that Tigrounette had created a bot that would act as a moderator and all BR/PT moderators were demoted, except Lucas#0010 and Mau#0010 who would deal with ban appeals. The BR/PT sentinels and Map Crew resigned in protest.^[1]
Troll maps were added to survivor.
In Unotfm, a Wild Draw 99 card was added to the deck.

2022[]

New meme collector shop items were added on 31 March 2022 (V1.694): .
The text for a giveaway in the Transformice Discord server was reversed.
Map Crew ran Vanilla Map Making Contest 2022 with 3 categories: perfect copy, mirrored and upside-down.^[2]
Lua event Shrek 2022 was released (V1.694a).
A fake notification icon was added to the Transformice Discord server icon.