Here is the full list of all 13 Amelite achievements.
You are on to a good start.
Reach the end of the game.
Speedrun the game and beat the Developer-record.
You completed the game with 0 deaths.
You found a secret room
All secrets found.
You found a secret path
Get killed by a crystal.
Complete upper left room in Level 15 drawing only one Platform
Draw 100 platforms.
Draw 1000 platforms.