The Difficulty Upgrade Tree: Classic

[DISCONTINUED]
This is the original TDUT game that got discontinued, there is a higher quality remake of this game available, called TDUT:R (The Difficulty Upgrade Tree: Regrown), check it out!

Total Upgrades: 250 (+28)
There are 2 reset layers in this game, with a sub-reset layer and a bonus reset layer.

Your progress does not save on public servers, it is recommended to keep playing in your own private server in order for your data to save. Some stats and badges can still be earned in public servers.
This game is meant to be active and grindy (no offline progress), you should expect around 3 days of active playtime to fully complete the game from scratch up to the bonus reset layer completion.

This game is not canon to TDUT:R.

Credits:
TUUT:T by: Gui_Ducks
Eternal Joke Tower Wiki
OmegaNum by: FoundForces