About
On Steam, 73% of 664 player reviews are positive (Mostly Positive). 6 people are playing it on Steam right now, with a peak of 8 in the last 30 days. It is Playable on Steam Deck.
A dark visual novel created by the team behind NEEDY GIRL OVERDOSE. Overly sensitive to other people's emotions, the protagonist—a light novel writer—develops the ability to read minds, only to be driven even deeper into isolation. His sole remaining comfort is his younger sister, gifted yet lonely.
Story
“Onii-chan, you really are a lonely person.” “Did you lose faith in me?” “No. I love you, onii-chan.” Unable to bear the ugliness of the world and terrified of other people, the protagonist develops the ability to read minds. He shuts himself away and submits a light novel he wrote, which unexpectedly wins a newcomer’s award. But the jealousy and envy that follow only deepen his distrust of the few human relationships he still has. Those around him hurt his fragile heart without even realizing it. His only remaining comfort is his younger sister, who lives with him. Clinging to each other just to stay alive, the two sink night after night into a twisted, unhealthy codependency. ―I keep living alone, talking about my own prejudices and cursing the world. Day after day. I ripped off Dostoevsky, half-assed it into something modern, and turned it into a light-novels. I mean, I tried. In my own stupid way. Had the heroines talk about “existentialism” like it was supposed to mean something.
Games like Sister Other Paranoia
same kind of game, other series
Media
Trailers
Releases
Earliest full release on each platform; regional dates can differ.
PC and Steam Deck
Steam store pageSteam Deck: Playable runs, but may need some tweaks
Requirements and Deck status as listed on Steam, checked Nov 2, 2026.
Sister Other Paranoia player count
concurrent players on SteamPlayers counted on Steam every one to six hours; the daily peak is the highest count of the day.