Free games like Sex Formula
Below are 8 free-to-play Steam games similar to Sex Formula, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Sex Formula page.
Ranked picks
- 1

College Bound - Episode 1
Free-to-play alternative to Sex Formula — no purchase or trial window. Shares Indie with Sex Formula.
After two years of working your butt off in college, you and your girlfriend Summer finally managed to qualify for an international student exchange program in sweet, sweet Paris. Sounds nice, doesn’t it? Well, maybe if the principal didn’t suddenly exclude you from the program completely. Bitch.
- 2

Prince of Suburbia - Part 1
Free-to-play alternative to Sex Formula — no purchase or trial window. Shares Indie with Sex Formula.
Prince of Suburbia is a kinetic (linear) adult visual novel with only one thing on its mind. This simple sandbox game is packed with lewd scenes and sprinkled with a fun story that aims to never leave you wanting more. Play Part 1 for FREE!
- 3

Crush Crush
Free-to-play alternative to Sex Formula — no purchase or trial window. Shares Indie with Sex Formula.
Welcome to Crush Crush - the Idle Dating Sim! Meet, flirt, and fall in love with a motley cast of girls in this heartfelt and hilarious game.
- 4

Fap Queen
Free-to-play alternative to Sex Formula — no purchase or trial window. Shares Indie with Sex Formula.
A game where anime mistresses instruct you to... do stuff with yourself. In real life. You probably want to play this game alone.
- 5

Angel Legion
Free-to-play alternative to Sex Formula — no purchase or trial window. Shares RPG with Sex Formula.
Idle or play whenever and wherever you want. Customize the looking of your favorite Angels. Automatically accumulate resources all the time.
- 6

Spiral Clicker
Free-to-play alternative to Sex Formula — no purchase or trial window. Shares Indie with Sex Formula.
Click to collect willpower, unlock outfits and CGs, and build a harem.
- 7

Blush Blush
Free-to-play alternative to Sex Formula — no purchase or trial window. Shares Indie with Sex Formula.
You are responsible somehow for a curse that befalls 12 unfortunate hawt dudes. Now you have to find them and break the curse with your love!!
- 8

Amorous
Free-to-play alternative to Sex Formula — no purchase or trial window. Shares Indie with Sex Formula.
Explore the dazzling neon lights of Amorous. A bustling furry night club that attracts all species, personalities and sexualities. Create your own character and find all 9 datable characters!