Our game is called "Twenty Minute Short Story". It helps with perfectionism. It gives you a first sentence of a short story and you need to finish it in 20 minutes. Simple!
Play it here for free: https://www.tmss.cc/
Before online version, we played this game a lot in my family. I came up with the idea when my 12-yo sister told me how she started a bunch of stories, but never finished them. I remembered that painters do lots of timed exercises and suggested we played a similar game with writing. Generated a prompt and timed it for 20 minutes. It was really fun. We did it many times since then and now I thought it'd be cool if other people could play it too. We usually log in with a few friends and play it simultaneously.
The writing prompt changes every day. Maybe it inspires you to finish some stories and get more comfortable finishing stuff!
Alex