frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

fp.

Open in hackernews

Show HN: Rollquation – A Rolling-Ball Math Puzzle Game for Android (Solo Dev)

https://play.google.com/store/apps/details?id=com.JabGames.PathCalculationMathPuzzle&hl=en_US
2•falcon19j•2h ago
Hey HN! I'm a solo dev and I just wanted to share my latest Android game — Rollquation.

The idea was to make math genuinely fun by combining it with navigation. You roll a sphere through maze-like levels, collecting numbered and operator cubes that must add up to exact values to unlock doors and reach the exit.

I also wanted the game to feel like a nice place to be, so I built it around a nature scene with trees, mountains and a waterfall. That came with a cost though, performance on older/weaker phones was an issue during my first release. I ended up building an adaptive performance system that auto-selects a quality setting (low/medium/high/ultra) based on the device's RAM. It helped a lot, though I'm still fine-tuning it.

The other big lesson was around controls. I originally used physics for the rolling sphere, which meant the ball would decelerate before changing direction which players found unresponsive and slow. Removing the physics and making movement instant transformed how the game felt.

Unity UI is not my strength and players have mentioned that it could use some work. The UI is usable but I may end up changing it.

Gameplay video: https://youtu.be/SGbQa3-ORhI

Play Store: https://play.google.com/store/apps/details?id=com.JabGames.P...

Any feedback or thoughts on the game is appreciated.

Saving Us from Ourselves?

https://leancrew.com/all-this/2026/03/saving-us-from-ourselves/
1•surprisetalk•1m ago•0 comments

Epicycles All the Way Down

https://www.strangeloopcanon.com/p/epicycles-all-the-way-down
1•surprisetalk•1m ago•0 comments

Synchronous Programming for Kids: A Manifesto [video]

https://www.youtube.com/watch?v=ESK695bHI5Q
1•surprisetalk•1m ago•0 comments

The Unix Executable as a Smalltalk Method [video]

https://www.youtube.com/watch?v=sZjPQ7vtLNA
1•surprisetalk•1m ago•0 comments

Dizzying Spiral Staircase with Single Guardrail Once Led to Top of Eiffel Tower

https://www.smithsonianmag.com/smart-news/a-dizzying-spiral-staircase-with-a-single-guardrail-onc...
1•bookofjoe•1m ago•0 comments

Ask HN: Why no insurance is fully transparent about how they handle each case?

1•julienreszka•2m ago•0 comments

Serious Weaknesses in the EU Age Verification App

https://twitter.com/intcyberdigest/status/2044762941019295772
1•gostsamo•3m ago•0 comments

DESI Completes Planned 3D Map of the Universe

https://newscenter.lbl.gov/2026/04/15/desi-completes-planned-3d-map-of-the-universe-and-continues...
1•ohjeez•3m ago•0 comments

What is audio visual entrainment? Science, benefits, and how it works

https://6th.tech/en/blog/audio-visual-entrainment
1•smanuel•4m ago•0 comments

Show HN: I built a free Mac app locker because AppLocker ($18) freezes Macs

https://github.com/dutkiewiczmaciej/MakLock
1•makmakapps•4m ago•0 comments

Making backwards- and forwards-compatible web programs (kbrecordzz)

http://kbrecordzz.com/2024/11/making-backwards--and-forwards-compatible-web-programs/
1•bollkalle•4m ago•0 comments

A Gentle Introduction to Mercury

https://bctnry.github.io/gentle-introduction-to-mercury/
2•PaulHoule•4m ago•1 comments

Cruise industry eyes nuclear to power a sustainable future

https://www.lr.org/en/knowledge/horizons/april-2026/cruise-industry-eyes-nuclear-to-power-a-susta...
1•mpweiher•5m ago•0 comments

Solve by Default

https://theengineersetlist.substack.com/p/solve-by-default
1•speckx•5m ago•0 comments

Warzone will be renamed to War.app

https://www.warzone.com/blog/index.php/2026/04/
2•wmlhwl•7m ago•0 comments

The Secret Art of Elicitation

https://www.generalist.com/p/confidential
1•jbredeche•8m ago•0 comments

Lead Full-Stack Engineer Marker Learning – Remote

1•lucie22sc32•8m ago•0 comments

Show HN: Yutu – A modern Lua linter written in Rust

https://github.com/0x2a-42/yutu
1•0x2a-42•8m ago•0 comments

How Missions Work

https://factory.ai/news/missions-architecture
1•gmays•8m ago•0 comments

Gemma 4-written, small cc0 encyclopedia of some core science content

https://stateofutopia.com/encyclopedia/
1•logicallee•9m ago•1 comments

It's the End of the Internet as We Know It

https://www.nytimes.com/2026/04/15/opinion/mythos-open-souce-internet.html
1•gpi•9m ago•1 comments

Tuta Drive launches in closed beta – post-quantum encrypted cloud storage

https://tuta.com/blog/tuta-drive-in-beta-launch
3•Cider9986•10m ago•0 comments

The founder box

https://anirudh.fi/founderbox
1•icy•10m ago•0 comments

An Arm Mainboard for the Framework Laptop

https://www.jeffgeerling.com/blog/2026/arm-mainboard-for-framework-laptop/
1•Brajeshwar•10m ago•0 comments

GeoGuessr for Code

https://getcomper.ai/blog/open-source-announcement
1•jtwaleson•12m ago•0 comments

Coding Agents Degrade Sandboxes to Security Theater

https://guardbase.io/blog/coding-agents-degrade-sandboxes-to-security-theater/
4•ronxjansen•13m ago•0 comments

Show HN: A tool to calculate LLM model API costs when coding

https://the-designengineer.com/model-cost-estimator/
3•canxerian•13m ago•0 comments

Gitmore – AI reports from Git activity

https://gitmore.io
3•ahmedktata•13m ago•0 comments

Show HN: Reloadium Weather: find best time for your favorite outdoor activities

https://reloadium.com/weather/
2•julienreszka•13m ago•0 comments

Show HN: Morebooksplease – SF Signal flowchart as a survey

https://morebooksplease.com
2•AFF87•15m ago•0 comments