
TheGoodGameTheory — Win Before You Work.
Play five quick daily challenges to build your winning streak.
@aditya_tggt · X
Something for you to do while claude does all your work!
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Play five quick daily challenges to build your winning streak.
@aditya_tggt · X
Something for you to do while claude does all your work!

Create drawing prompts with AI images and timed challenges at various difficulty levels.
haowen8098 · V2EX
做了一个随机绘画题目生成器 它可以根据绘画类型、难度和挑战时间生成题目,还提供倒计时和可选的 AI 参考图: https://www.drawingpromptgenerator.com/ 目前还是早期版本

Compete against Claude AI in timed coding challenges judged on speed, correctness, and code quality.
u/Easy-Visit-3934 · Reddit
I built a coding platform where you can compete with Claude on various coding problems, it evaluates based on speed, correctness and code quality Link: https://www.duelai.dev/ Feel free to give it a try and let me know what you think! submitted by /u/Easy-Visit-3934 to r/SideProject [link] [comments]

Practice real-world UI challenges to prepare for frontend engineering interviews.
@ghazikhandev · X
I'm an engineer by day and builder post 6PM. Building and now. Always love to build something and now claude code has made me much more productive.

Practice algorithms and coding skills through interactive challenges where AI agents build and test your code.
u/Death12th · Reddit
Free consumer product, seat-based education product, enterprise assessment product. Same codebase. Is this survivable? Three motions off one core. Students practice free and generate cost, not revenue. Educators pay per seat. Hiring teams are the expensive product and the reason any of it matters. The free tier feeds both paid ones and that's the only thing justifying it. Education is slow, cheap, sticky. Hiring is faster, pricier, and churns the second the role gets filled. Billing got

Observe a color, then recreate it from memory in daily challenges.
@index_caogen · X
我的新游戏网站 Color Match Game 上线了 🎨 观察一个颜色 4 秒,然后凭记忆用色相、饱和度和亮度把它还原出来,看看你的色彩记忆能得多少分。 每天 5 道挑战,全球玩家题目相同。 完全免费,无需注册。 来试试你能不能超过我: #独立开发 #独立游戏 #小游戏

Stack towers by dropping floors, with each building based on real architecture.
u/eashish93 · Reddit
I made a tower stacking game where every height you pass is a real building highrise.lol - tap to drop a floor, stack it as high as you can. Every height you pass is a real building. Free, no signup. Built with Claude Opus 5. Three things I got wrong. I thought the game was the hard part. It wasn't. Anyone can POST a fake score, so I rebuilt the physics to let the server replay your whole run from a seed and a list of taps and check it itself. That touched everything.

Solve daily coding challenges with AI assistance and track your developer streak.
u/Administrative_Egg78 · Reddit
I built this because AI was making me a dumb&lazy engineer I noticed something sad about how I use AI. I was shipping faster, but practicing less. I could get answers quickly, but I was losing the habit of working through the fundamentals myself. So I built Unrot: short daily challenges for developers across languages, system design, architecture, data engineering, and other tracks. Game/xp and rewards system, a tiny bit competitive. No signup required to try it: https://unrot.dev

Train your concentration with interactive games including Schulte Tables, Stroop Tests, and reaction time challenges.
Focus Game — 专注力训练小游戏集合,包含 Schulte Table、Stroop Test、Reaction Time Test 等浏览器训练工具

Real-time multiplayer quiz game with AI host, 30+ game modes, and exam prep packs.
@deebee230730 · X

The daily visual challenge. Three compelling scenes that play with your perception. Trust your intuition to solve today's set.
u/LeZoroducu · Reddit
I built a free daily game where you get amazed by reality instead of AI slop. (Update: Video support and backstories) I shared a very early version of my side project here a few weeks ago, and the feedback was super helpful. It's a completely free daily browser game, no sign-up needed. You can play today's set here: shamshot.com With all the AI generated stuff flooding the internet lately, I found myself second-guessing completely normal pictures. But it also made me realize

Playable collection of small, absurd AI projects, each taking about ten seconds
@KarolBuilds · X
My AI slop at is so underrated that I’m the only visitor.