first real program was an 8x8 maze game on my ti-83+ calculator. wrote all as nested ifs, and if you took one wrong turn it'd run out of memory

My first actual program was on a TI 83+ as well. All nested ifs and goto's
It was a star wars based game (textual) where you could steal, fight and sell.

I also created programs with formulas which not only gave you the answers but also proper calculation steps.

The language looks like basic

My first bigger game was a snake clone on my Ti83+. One time I felt nostalgic and booted AndiGraph with the relevant ROM on my Android in order to code that basic again -- that feeling went by quickly. I am not that masochistic anymore. I want code completion, I want a frigging keyboard and the scrolling between the labels was inane. I still cherish the memories of a wasted youth though ^^

My first program was also for the TI83. You would insert all the variables you had in a physics problem, leaving the unknowns as empty. Then the program would give you the answers of all the empty values. It wouldn't give you procedures but it was a great tool to check answers during tests.