Here is the full list of all 36 A Buttload of Free Games achievements.
Play A Clownfetti Catastrophe.
Play Whodini.
Play Tooting in the Rain.
Play The Scarlet Cypress Hotel.
Play Sqaranch!
Play Scream Sport.
Play Plünge.
Play Hungry Frog 2.
Play Geckles's Ghosts.
Play Super Slime Slasher Ultra.
Play Spicy Mansion.
Play SOUP.
Play Place Place.
Play Real-Time Gardener.
Play You Can't See Everything at Once+.
Play When Life Gives You Lemons.
Play Rootin' Tootin' & No Shootin'.
Play Two Sides.
Play Rogue_Paint.
Play |\\/|0|\\|5+3|2.exe.
Play Miracle Cure.
Play Intergalactic Interpreter.
Play Hunk Hustler.
Play The Flame.
Play FEED ME APPLE.
Play Procrabstination.
Play Fancy Trash.
Play Falling in Love.
Play Do the Business.
Play FPS TRUE LOVE.
Play FataliTea.
Play Demons.
Play Dark Roads.
Play Bird Bakery.
Play Ben VS Anime.
Play 10 Second Painter.