Trying a few more in our last few hours of voting.
I don't think a single one of the card-based games was quite working right, so they must be more complicated than people expected. My favorite was the one about delving as deep as possible, even though it's real repetitive. I ended up "losing" because you can't move onto water (blue) tiles, and I spawned in the middle of the water, completely surrounded. Firefighter in Hell might be a good game with instructions and something showing an effect from playing cards, but the real-time playstyle means you have about 30 seconds to figure out how the entire game works without any context clues before you die.
Decker looks promising, but I can't figure out how I'm supposed to proceed. Load up your hammer (attack) immediately, walk onto the log-in port, which creates an alarm and brings enemies, survive until the alarm clears (I didn't see an alarm status anywhere, but sometimes I saw a message that the alarm cleared). Then you get a user authorization token to open low-end doors, which you also need to load. Then sometimes you get lucky and find a higher-access user token, and sometimes you don't. You can attack doors to open them, but that creates an alarm, which brings enemies and invalidates your user token, and all of the doors around you shut so you can't get back to where you were. I *think* you're supposed to wander around until you have a good guess where to go, smash the doors, hit all 3 systems (also hoping to successfully break those doors and guess the correct direction before you're killed), and log out before you're caught. But your odds of success at the beginning are around 0. It's entirely possible I'm missing something.