Achievements

 are rewards that may be earned for various feats. They were added to the game on February 21st. There are currently 50 achievements in total.

If you earn an achievement, it will be saved if cookies are enabled. There is no prize for finishing an achievement, except for bragging rights.

Strategies
It’s best to finish the achievement ‘Got Gud’ in Survival mode as lots of players spawn at level one and in a small area, allowing you to battle low leveled players then proceed to kill them. Suggested classes for this strategy and gamemode include using the Twin or the Machine Gun.

If one is trying to finish ‘These Squares gotta go’ or ‘Destroy EVERYTHING’ quickly, the player needs to focus on destroying Polygons more than Bosses or other players. Crowd control tanks like the Penta Shot, Octo Tank, Battleship, or Spread Shot will obviously work, since the spread-out bullets are sure to destroy all nearby polygons with ease.

Trivia

 * The Square is the only specific polygon to be used for earning at least three achievements.
 * You could once achieve achievements in Sandbox, but it was soon removed.
 * “There are other classes?” achievement used to be “Wait, there are other classes?”
 * The achievement ‘BUILD A WALL’ may be a reference to Donald Trump’s proposed wall on the Mexican border.
 * As of the March 2nd update, the progress toward acquiring each achievement is now numbered as a percentage (only for achievements that this feature is applicable to; ones that involve quantity)
 * The colors of earned achievements are the UI theme colors (same ones as the game mode buttons, stats, etc.) looping repeatedly.

Bugs
{{BugList|

Achievements List Not Hidden During Gameplay
When the achievements list is currently shown, and you join to a server, the list does not hide, but instead stays on there without scrolling other achievements (it simply stops). This can be easily done by moving your cursor to the right side of your screen before joining in to the server, then when you can join in, press Enter to spawn. Note that this is different when the player actually earned achievements, as earning one shows only the achievement the player receives, and later will disappear. }}