Most of what I’ve found so far in that area is furry games but there are a few human ones too. I might forget something but here’s a list of what I can remember.
- A Predator’s Beginning by Unex - Furry; Quest based; story progression requires you to eat people but you don’t have to eat everyone. Just enough to be big enough to progress
- Daily Gluttony by Unex - Quest based; A fun romp where you can eat your friends while hanging out with them. There’s an ending you can find by exploring with some of the gifts they give you
- Daily Gluttony 2 by Unex - Quest based; A larger version of the previous game with a new set of friends and even more npcs you can eat
- Recovery by Honoriam - QuestJS based (very overhauled quest engine that can run through); Incomplete game but in active development; A lot of content and fun characters so far; You can’t eat everyone and you are also vulnerable to being eaten; Exploration focused
- Fatty Text Adventure Game by Noone - Furry; Originally flash but now twine; Fat acts somewhat like XP; You have to level up a bit to be able to vore enemies
- Vorinomicon by Trashman - Furry and Human; Twine based; in development but has enough vore scenes for the moment
- FightFuckFeed by HeroMC - Your pick between Furries or just Monstergirls; Weight gain is optional and a bit slow; a lot of content to find and explore
- Saint Miluina’s Vore Academy by Osmium Orchid - Human; Pred and prey routes; Hasn’t been updated since last year; I don’t think you can get too terribly large but there’s plenty of opportunity to gorge yourself over the week of time in game
- Aweworld by Evoc - Furry; Browser based with potentially an offline mode in the future; Finished CYOA style game with a real knock out story imo; The player character gets fatter as you digest other characters but the difference between stage 1 and 2 wasn’t easy to notice while 2 to 3 was obvious
There are a lot more I’m forgetting but these are the ones I can still remember off the top of my head. The Quest games are better played by downloading them rather than using the browser mode. Recovery is the only exception.