Alternatives
Products that do what Gravity Well Arena does
Combat game where time dilation is the core mechanic
- 1LL
2018 · github.com
- 2
- 3PA
We have a black hole at home — with actual relativistic physics, live in your browser. I'm Sasha (Alexander) Plavin, an astrophysicist at Harvard's Black Hole Initiative studying quasars and black hole environments. I work with raytracing/radiative transfer simulations professionally, and wanted to make one anyone can play with — so I built this app. Put the black hole onto your screen (any browser), or directly into your room with AR or VR (requires WebXR, for example Chrome on Android, or any VR headset). When looking around, pay attention to unintuitive relativistic effects: rays…
Jul 2026 · blackhole.plav.in
- 4
- 5
- 6GI
Just for fun and self education, I've built this over a weekend to teach myself why orbits exist, not just show planets going around. Something that was never clearly explain to me in school. It opens with a guided tour that builds the idea up step by step: two bodies and the equal/opposite force, inertia (the Sun is removed and Earth just drifts straight), then "an orbit is falling and continuously missing," cosmic velocities with a little rocket, Voyager 1 & 2's real gravity assists (the clock runs the actual 1977–1989 dates so the planets orbit into their grand-tour alignment and the…
Jun 2026 · qunabu.github.io
- 7
- 8
- 9IM
2022 · quaxio.com
- 10PA
2024 · apps.apple.com
- 11
- 12
- 13
- 14
- 15
Voronoi Go▲155I posted once before but wanted to share again because a lot has changed. There's now a fairly strong bot to play against (contributed by a community member) and also correspondence games. The combination of these things helps a bit in finding people to play against.
10d ago · voronoigo.com
- 16
Real-time 2D gravity sandbox with causal propagation (finite c), GW-strain heatmaps, and a virtual LIGO probe. Numba JIT, CPU-only. - alessandro-pioli/AstroCausal_Engine
3d ago · github.com
- 17IB
Mar 2026 · structuredlabs.github.io
- 18
- 19
Patience▲91The only mechanic is waiting. The only currency is time.
25d ago · patience.jordanshaw.com
- 20
- 21IB
2022 · multiplanetary.website
- 22AS
I made a strategy game where you play the US or China through the AI race, 2026 to 2030, sixteen quarterly turns in the browser. One run takes about half an hour. At the start, the game seals two dice you never get to see. Inside: how hard alignment really is, and how fast takeoff compounds. You get eval reports, but only as ranges, and they flatter you most exactly when your systems are least aligned. At the end you get a debrief which shows what your evals said each quarter and also what was actually true. I lost every run I played myself so far. Every number in the game is source-backed…
Jul 2026 · criticalwindow.org
- 23AR
Hi HN, I’m sharing a small open-source project I’ve been working on: a native C++ ballistic solver that computes launch angles to intercept moving targets in real time, under gravity and air drag. Instead of relying on vacuum assumptions, closed-form equations, or lookup tables, the solver formulates the intercept as a nonlinear problem and solves it numerically using time integration and iterative methods. The motivation came from game and simulation scenarios where simpler approaches tend to break down: - moving targets - strongly curved trajectories due to drag - real-time constraints The…
Jan 2026
- 24AN
Most games have limits. You can only use preset features, need coding for customization & adding mods, require expensive extra devices. We wanted to remove those barriers. That’s why we are building space zero—a browser based 3D world powered by AI. We plan to build players can freely mix items to generate unexpected creations with unique properties and sounds. Also the world itself is dynamically generated, evolving endlessly. I uploaded a demo version I’ve been working on for the past month! I hope to get any feedbacks or comments :)
2025 · 0.space
Ranked by how close each launch is in meaning, then by votes. Refine with a description →