Meridian
A persistent world, exploring what AI can build & learn.
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
Meridian is an independent, open-source experiment in persistent AI worlds, created by Jake Creeley at Creeley Digital Systems, Sydney. https://github.com/CreeleyDigitalSystems/meridian-public The idea is a city that keeps its history. Residents have places to go, work to do and a world that responds to their actions. The research ambition is for useful abilities to accumulate: an individual notices a problem, tries an idea, learns from failure, makes something that works, then teaches someone.
PH · launched Oct 28, 2026 · 1 upvote (top 67%) · 0 views
Niche: ai workspace platforms · 391 launches, 37 in the last 7 days ▼ -5% · Explore this niche →
Category and tags
- Horizontal
- B2C
- AI-native
- Hobby / open-source project
- Open Source
- Artificial Intelligence
- GitHub
- OpenAI Day
Visit website ↗ Source listing ↗
More like this: all 391 launches in ai workspace platforms →
Could you build this?
Partial The UI and basic simulated city are buildable, but a convincing persistent world with agents that learn and keep history needs substantial agent orchestration, memory, and simulation design beyond vibe coding alone.
What it would actually take: A real version would need a persistent world-state store, an event/tick simulation loop, and LLM-driven agents with long-term memory and retrieval. The hard parts are making agent behavior coherent over long timescales and keeping costs and state consistency under control. This requires experienced agent-systems and simulation engineering, not just prompting.
Competitors
Other products that read as similar to this one : 79 launches clear the similarity bar, closest 8 shown.
Attention rank: #42 of 80 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 344 days after the earliest competitor.
- SimulAIcra · ph · 2026-10-20 · 1 upvotes · similarity 0.72
- Learning World · ph · 2026-09-18 · 1 upvotes · similarity 0.41
- LingYA Cosmos · ph · 2026-09-18 · 1 upvotes · similarity 0.40
- Meridian(PH#1) A better way to recognize developer contributions · hn · 2026-08-27 · 5 upvotes · similarity 0.40
- World Model Atlas · ph · 2026-09-12 · 1 upvotes · similarity 0.40
- Atlas Ai · ph · 2026-10-27 · 1 upvotes · similarity 0.39
- Sol Meridian Consulting · ph · 2026-10-09 · 1 upvotes · similarity 0.38
- Atlantis · ph · 2026-09-15 · 2 upvotes · similarity 0.38
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.