Ahh gotcha.
Goodbye Eternity by RNGeusEX is the first thing that comes to mind. Story may still seem incomplete, but it's getting there since the main characters are getting their initial routes finished.
This having good animations in 2D is actually a pretty nice addition.
Once a Porn a Time by Salty01, If you don't mind some grinding,
Space Rescue: Code Pink by Robin
Price for Freedom: Avarice by Team Dead Deer, for an actual RPG Game w/ Combat if you wanna try it.
S.H.E.L.T.E.R. - An Apocalyptic Tale by Winterlook. Not a straight parody of, but very similar to Fallout
Stellar Dream by Winterlook
Inn Another World by Dagotto. If you don't mind a Monster Girl centered game. Take not that the game just switched to Unity from Ren'py so expect performance issues atm. Reason it switched is due to the Inn Building/Management system.
Now for the Parodies.
Gem Domination by Team Gem Buster. Parody of Steven Universe
Attack on Survey Corps by AstroNut. Parody of Attack on Titan
Deep Vault 69 by Bohohon. Parody of Fallout
The Lewdest House by DMF. Parody of Loud House
That's all the Drawn 2D game I could think of which I enjoyed. Dunno if you will enjoy the story of it, but here are some options that would probably keep you busy for a while