余律
A watercolour ecology experiment about emergence: you cannot command the creatures, only leave simple rules on the water; made essentially alone with heavy AI help in TapTap Maker.
Links go to the official store or developer page. Last verified Nov 3, 2026.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- View demo on TapTapTapTapDemo · Store page title reads "余律测试" ("test") and offers a trial ("试玩 DEMO"); listed in TapTap's 创意工坊 sectionFree
Install through the TapTap app.
Mobile · Desktop · TapTap
About 余律
An ecology experiment game on TapTap built around 涌现 ("emergence"), the theme of TapTap's 聚光灯 (Spotlight) 2026 21-day game-creation challenge. You cannot control the creatures of 白庭 directly; you can only leave three simple rules on the water: draw closer (亲近), keep apart (疏离) and follow (相随). The creatures act on these local conditions and can form schools, circling currents and other behaviour you never directly set. With a limited supply of 律墨 (rule ink) you help the fading 白庭 regain its colour, and the behaviours you discover, the 余律 of the title, are recorded in a rule book. In the creator note the developer calls the game an experiment around emergence that did not reach its original vision, and says the project used AI development heavily, which let one person build many systems quickly but showed that fast implementation cannot replace early design and play-testing. A development log adds that the project was made essentially alone in TapTap Maker, with the Lua code, test scripts and numerical probes done with AI assistance. TapTap files it under TapTap制造 (TapTap Maker). It is a free trial (试玩 DEMO) on Android, iOS and PC.
Screenshots and art
余律 key art · TapTap store screenshot
How it was built
Partially verifiedIn the creator note on the TapTap page the developer writes that the project used AI development heavily ("这个项目大量使用了 AI 开发"), which let one person build many systems quickly but also showed that fast implementation cannot replace early design and play-testing. The final development log (16 Oct 2026), posted three days after the store page's first-publication time although it says the game is about to go live, says the project was basically completed by the developer alone with heavy use of AI, and that many core systems, the Lua code, test scripts and numerical probes were made with AI assistance ("很多底层系统、Lua 代码、测试脚本、数值探针，都是在 AI 辅助下完成的"), growing to more than 10,000 lines of Lua and dozens of test and probe scripts. The same log says the models that can be chosen in TapTapMaker are on the lightweight side, which in a complex project often led to incomplete grasp of the context, repeating abandoned approaches and fixes that broke something else. It does not say what share of the code AI wrote or which model was used.
- DeveloperCreator note: the project used AI development heavily, letting one person build many systems quickly. — TapTap
- DeveloperDevelopment log (3 Oct 2026): says TapTap Maker ("taptapmaker") is hard to use for uploading art assets, whose file names get garbled, so the AI has to identify images by sight and gets them wrong. — 聚光灯游戏创作挑战论坛 on TapTap (初阳予葵ヾ)
- DeveloperStage report (13 Oct 2026): the project has about 10,600 lines of Lua ("约 1.06 万行 Lua") with the core modules in place. — 聚光灯游戏创作挑战论坛 on TapTap (初阳予葵ヾ)
- OfficialTapTap files the game under its "TapTap制造" and "聚光灯GameJam" tags and shows the 聚光灯 2026 21-day challenge banner. — TapTap
Made essentially alone in TapTap Maker with heavy AI assistance for TapTap's 21-day challenge. The developer's logs describe throwing out the core play several times (guiding creatures to a far shore, recolouring the whole pond, rewarding dense clusters) before settling on fading regions and shifting fading pressure, and say some systems already written into the code were hidden in the released version because players could not read them. An early log is titled as having generated a first set of art assets; it does not name the tool.
- Engine / framework
- Not disclosed (made with TapTap Maker)
- Languages
- Lua
- Team size
- 1 (solo)Developer Reported余律 forum on TapTap (初阳予葵ヾ)
- Initial build time
- Within 21 days (a 聚光灯 2026 challenge entry)OfficialTapTap
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
Verification notes: AI use, the tool, team size and code size come from the creator note on the TapTap page and three logs by 初阳予葵ヾ (badge "《余律》制作人", producer): a Day 2 log (3 Oct 2026, 23:55 China time) and a stage report (13 Oct 2026, 08:52 China time) in TapTap's 聚光灯 challenge forum, both edited on 21 Oct, and a final log in the game's forum (16 Oct 2026, 09:59 China time). TapTap marks the logs as containing AI-generated content ("包含 AI 合成内容"). Team size is one from the final log, which says the project was "basically" done by one person ("基本是我一个人完成的") but also uses "we" once. The final log says some systems (such as the 墨灵 creatures) were written but hidden in the release; they are not described here as features. The final log, posted after the store page's first-publication time, says the game is about to go live; the store date is used. Developer 初阳予葵ヾ的工作室, supplier (上海创巴科技有限公司), tags (聚光灯GameJam, TapTap制造, 休闲), the 聚光灯 2026 banner (21-day entries by independent developers and small teams), first-publication time (13 Oct 2026, 18:52 China time, page data), rating, followers and platforms from the TapTap page. The page's 热度 (heat) figure is not recorded because it is not confirmed to be downloads.
Development history
In a Day 2 log the developer reports a first set of generated art assets and difficulties uploading them to TapTap Maker.
Developer聚光灯游戏创作挑战论坛 on TapTap (初阳予葵ヾ)A stage report puts the project at about 10,600 lines of Lua, with the core modules in place.
Developer聚光灯游戏创作挑战论坛 on TapTap (初阳予葵ヾ)First published on TapTap (18:52 China time, page data) as an entry in TapTap's 21-day 聚光灯 2026 game-creation challenge.
OfficialTapTapThe developer posts a final log reflecting on the unfinished emergence experiment and on developing with AI.
Developer余律 forum on TapTap (初阳予葵ヾ)
Game performance
Each figure measures something different — concurrent players, owners, downloads and sales are never interchangeable and are never added together. Labels show where each number comes from.
TapTap
TapTap's structured data lists a price of 0 (CNY). Whether the game has ads or paid features is not stated on the page.
Reviews & rankings
Not yet reviewed by our editors.
Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| 余律 on TapTap TapTap · Chinese (Simplified) | Store page | Oct 13, 2026 | Nov 3, 2026 |
| DAY2 初步生成了美术资产，准备替换 聚光灯游戏创作挑战论坛 on TapTap (初阳予葵ヾ) · Chinese (Simplified) | Devlog | Oct 3, 2026 | Nov 3, 2026 |
| 《余律 AFTERLAWS》阶段开发报告｜10.13 聚光灯游戏创作挑战论坛 on TapTap (初阳予葵ヾ) · Chinese (Simplified) | Devlog | Oct 13, 2026 | Nov 3, 2026 |
| 《余律 AFTERLAWS》开发日志last：一个没有做完的“涌现”实验 余律 forum on TapTap (初阳予葵ヾ) · Chinese (Simplified) | Devlog | Oct 16, 2026 | Nov 3, 2026 |
| Official game page (language check) TapTap | Official site | Not confirmed | Nov 3, 2026 |
