Description

My Classmates Left Me Behind In Another World, And Now I Have To Survive The Colosseum With The Worst Ability Of All flips the isekai formula on its head—no shy, clueless hero here. In this animated fantasy RPG from RuinHouse, you play a male protagonist who actually pursues everyone he meets, turning survival into seduction. Stranded and abandoned, you’re thrown into the Colosseum with nothing but the worst ability of all, and it’s up to you to make it work.

Combat and harem-building go hand in hand. Every battle in the arena makes you stronger, and every victory opens the door to new encounters. As you fight to stay alive, you’ll steadily recruit allies into your personal harem, blending transformation, fighting, and adult romance into one wild ride. The gay and futa/trans characters you meet along the way each bring their own scenes, from anal sex to exhibitionism, so the fantasy doesn’t hold back.

This early build is all about the freedom to chase what you actually want. Masturbation, steamy encounters, and bold exhibitionism are woven throughout the story, and your choices shape who joins you and how far things go. The Colosseum is where survival and ambition collide—grow stronger with each fight and see how far your luck and your libido can carry you.

Your classmates may have left you behind, but the worst ability of all won’t stop you from thriving. Step into the arena, build your harem, and claim your place. Download and play My Classmates Left Me Behind In Another World today.