I can only think of A Town Uncovered. It's pretty much a carbon copy of Summertime Saga, except the protagonist manages to get into a freeuse universe (with caveats, of course) and then back into "baseline reality". Honestly, I think I could do it, I graduated as a software engineer in college and I can write (although I may bring in volunteer writers to assist). The only major issue is finding an artist who isn't too expensive or cheap. A happy medium. I've actually got a synopsis drafted up:
The player will start out at baseline reality, where he eventually gets assigned to 3651-A at Outpost 3-B in Denver, CO. It's run by a small, but competent staff who have embraced the 3651 lifestyle. They regularly visit a nearby facility of the alternate SCP Foundation to study anomalies. The main focus of the game will be in the SCP Site itself. However, you will be given the option to explore various parts of Denver, especially after the containment breach where you to have to ask around to gather clues.
SCPs involved:
- SCP-105 (major character)
- SCP-343 (acts as a guide to the player, similar to Goddess Ilias; major character)
- SCP-166 (sports a “Dandere” archetype; secondary character),
- SCP-085 (no sex between protagonist; but is seen getting nailed by two dudes in an art piece; minor character)
- SCP-999 (a lot less innocent; has a more slime-y appearance and can morph into a dude or chick; still has mentality of a dog; secondary character)
- SCP-953 (manipulative and hostile; sex scene during containment breach and “rapes” protagonist; lives off semen instead of liver; secondary antagonist)