I made this game for the Game Off Game Jam: 2021 using Pico-8

You can find the GitHub repository here

The game has 8 handcrafted levels, five types of enemies, and six types of towers to use to defend your place in the computing world. Initially, I was planning for 16 levels, but I had to cut them in half or I would not finish the game in time. It was my first experience with the tower defense genre. Definitely, it needs more polishing and balancing.