Onii-chan Asobo overview

Overview

Onii-chan Asobo comes from ilシ and is published by ilシ. It arrived on Steam on Sep 27, 2019, and it sits naturally among Single-player, Steam Achievements, Steam Trading Cards, Partial Controller Support, and Family Sharing. SteamPulse tracks it across Windows and Steam so readers get a quick useful snapshot, not just a wall of numbers.

Players and reviews

Onii-chan Asobo's latest SteamPulse observation recorded 0 players at 22 September 2026 - 11:22:33 UTC, with a tracked peak near 2. This peak is the highest value in the available SteamPulse record and may not include activity before tracking began. Player reaction is 73% positive across 347 reviews.

Language and system requirements

Onii-chan Asobo is available in 1 languages including:

3 regional rating boards including dejus, steam germany, and igrs

Sales, recommendations, and streams

Onii-chan Asobo has sold up to 5,714 units and has 310 Steam recommendations. The estimated VGI revenue is $35,321. On Twitch, 0 streamers are live with around 0 total watchers.

Onii-chan Asobo overview details

Onii-chan Asobo combines live player counts with reviews, pricing, platform support, Store metadata, dated player history, media, recent news, and related games.

Steam Store description

Genres: Kinetic Novel, Eroge, Slice of Life, Romance. Koichi Akiyama, an ordinary 22-year-old game developer, has been living a boring life until one day his younger sister Ai paid him a visit. Soon after Ai moves in with Koichi, she claims that she wants to become a game developer too, so her brother has to teach her everything he knows. The only problem is that Ai wants to create Hentai games, which puts Koichi in a dubious position. From now on these two need to learn how to work together and explore all the difficulties of writing Hentai stories. HD 1080p window & full screen options 50+ Beautifully illustrated CGs Original Soundtrack

SteamPulse editorial summary

Onii-chan Asobo is listed as a game with $8.99. It supports Windows, belongs to Single-player, Steam Achievements, Steam Trading Cards, Partial Controller Support, and Family Sharing, and is associated with Casual, Indie, and Simulation. SteamPulse's latest observation records 0 players at 22 September 2026 - 11:22:33 UTC, a tracked peak of 2, and 73% positive reviews.

Content descriptors

All the characters in "Onii-chan Asobo" are over 18 years old. Mature content intended for adults only: scenes of sexual nature and consensual sex. The text contains scenes of sexual nature and detailed consensual sex descriptions.

Highlighted achievements

Support and legal notes

Real questions answered from SteamPulse data, including live players, monthly momentum, review sentiment, regional audience signals, Twitch activity, and current Steam pricing.