Current progress on my Twine text-based choice game: As of 10 minutes ago currently sitting at 4,047 words after almost 7 hours of development time, not counting any breaks.
Currently between 20-30% complete by my estimation and can take between 30-35 minutes at the most to read all outcomes (so far). Since this is my first time writing and designing (but mostly writing) a game like this I've adjusted my expectations and ambitions based on what I have so far in the development process. The game has many "bad" outcomes, that still work as endings but also serve as their own game overs, before the player decides if they want to proceed with the main route.
I'm currently speculating that, with my current pacing of writing & tweaking, that the game might exceed one hour of playtime total if you go for a completionist run to see all outcomes by developments end.