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A character-simulation social game: build your own character, chat, run adventures, and keep a desktop companion.
Visit Official WebsiteProduct Type
Software
Platform
AppleAndroid
Languages
Japanese / English
Regions
Japan / United States
Pricing
Freemium
Price
Free to download; advanced characters, adventure items, and generation quotas unlock via in-app purchases, with specific tiers not publicly disclosed.
Free Trial
✓ Trial Available
Free to create characters, chat, and experience social feeds; advanced adventures/generation quotas require in-app purchases.
Last updated 2026-10-23· Content established
Data may be delayed — always check the official website for the latest info.
Visit Official WebsiteAbout This Tool
Bside, by Japan's Kotoko Inc., launched 2026-03-31, is a "character simulation + social game." You build a character from scratch—writing a backstory and personality tags that shape how they think, speak, and act—and freely customize face, body, outfits, and accessories. Once built, you chat with the character and feel its personality in every interaction; the character also posts social feeds you can comment on or share. "ADVENTURES" lets you team up with friends' characters for idle adventures, collect surprise items, and relive each journey through AI-generated comic scenes; "PLAYGROUND" lets you create stories that AI expands and sends your characters into community-made worlds. A "Bside: Desktop Mate" desktop-companion form is also available on Steam. The official blog ships regular updates (e.g., v1.5 "MAGIC AWAKENS" in Oct 2026), showing active operations.
Background
Bside, by Kotoko Inc. (Japan), launched on App Store / Google Play on 2026-03-31 as a "character-simulation + social game" platform, later extended with a Steam desktop-companion form.
Technology
Built around user-created characters: backstory and personality tags drive dialogue and behavior; social feeds, idle adventures, and AI-generated comic scenes form the interaction loop; PLAYGROUND expands user-authored stories via AI. Underlying model not disclosed.
Market
Launched 2026-03, primarily Japan with US availability; the official blog ships steady version updates and creator contests (e.g., July visual-novel contest), an emerging character-simulation social product.
Best For
People who want to build and raise their own OC/character from zeroPlayers who enjoy roleplay plus social interaction and adventuresUsers wanting a desktop-companion (Desktop Mate) form
Editorial Note
The "character creation + chat + social feeds + idle adventures + desktop mate" combination is rare, with a complete roleplay/raising experience; downsides are the still-small rating sample and undisclosed paid tiers.
Strengths
- + Deep character creation from backstory/personality tags
- + Interaction loop of social feeds + idle adventures + AI comic scenes
- + Extends to a Steam desktop-mate form for multi-scene companionship
Drawbacks
- − Newly launched with a small rating sample
- − Advanced character/generation tiers not disclosed
- − Primarily Japan-focused with limited other-region coverage
Value Assessment：Worth a try for roleplay fans who want to hand-craft and raise a signature character and play social adventures.
External Resources
FAQ
What is Bside and how do I start?
Bside is a character-simulation social game. After download, build a character (backstory + personality tags, customize looks), then chat with it, read its social feeds, and explore adventures and PLAYGROUND stories.
Does it cost money?
Free to download for character creation, chat, and social feeds; advanced characters, adventure items, and generation quotas unlock via in-app purchases, with prices not yet disclosed.
Can I use it on a computer?
Yes. Besides iOS/Android apps, Bside offers a "Bside: Desktop Mate" desktop-companion form available on Steam.
Will the character remember me?
Yes. Your backstory and personality tags carry through dialogue and behavior, and social feeds reflect the character's current state.
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All information on this site is for reference only. Data may be delayed — always verify on the official website. Listings are in no particular order.