Battle Sim
A browser tactics game where reconnaissance, projectile physics, and positioning decide each seeded battle.
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@dzhng
David Zhang
Engineer and founder building developer tools, AI agents, and creative software.
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- www.dzhng.com
#1 of 3 in Games > Games
21 projects landed 2,614 changes across agent and git workflows.
Featured work
Leading projects
Yap
An agent communication tool built around recording, showing, and sharing what happened on screen or camera.
Visit project ↗Jevgrep
Semantic code search that helps agents find relevant files and tests with benchmarked retrieval quality.
View on GitHub ↗Contribution evidence · 22 projects
Projects
sorted by landed changesProjectLanded Difficulty Points
Company · Agent orchestrationCompany work, shown as totals only
LANDEDTEAM x1.25
How this was judged
Landed739 changes on main
Difficulty10 · judged by the agent (older helper)
Livenot live
Open sourceno
Points80 · 10 × L 2 × 4 × 1.0
NicheAI > Agents > Agent orchestration · 179 niche points
739counts as 923
D1080Company · Assistants & chatCompany work, shown as totals only
LANDEDTEAM x1.25
How this was judged
Landed548 changes on main
Difficulty8 · judged by the agent (older helper)
Livenot live
Open sourceno
Points80 · 10 × L 2 × 4 × 1.0
NicheAI > AI applications > Assistants & chat · 174 niche points
548counts as 685
D880Battle SimA browser tactics game where reconnaissance, projectile physics, and positioning decide each seeded battle.
D980LANDEDUNCHECKED
How this was judged
Landed311 changes on main
Difficulty9 · judged by the agent (older helper)
Livenot live
Open sourceno
Points80 · 10 × L 2 × 4 × 1.0
NicheGames > Games > Game AI & simulation · 163 niche points
LIVE · VERIFIEDUNCHECKED
How this was judged
Landed275 changes on main
Difficulty9 · judged by the agent (older helper)
LiveLIVE · verified: our server checked agentfeedback-web.vercel.app on 2026-10-18
Open sourceno
Points120 · 10 × L 3 × 4 × 1.0
NicheSoftware > Infrastructure > Video & media infrastructure · 242 niche points
LANDEDVERIFIED
How this was judged
Landed33 changes on main
Difficulty6 · judged by the agent (older helper)
Livenot live
Open sourceno
Points40 · 10 × L 2 × 2 × 1.0
NicheAI > AI applications > Search & RAG · 65 niche points
AI ExplainerAn interactive 3D explanation of language models that grows from word counts into a tiny trained model.
D8120LIVE · VERIFIEDVERIFIED
How this was judged
Landed29 changes on main
Difficulty8 · judged by the agent (older helper)
LiveLIVE · verified: our server checked aiexplainer-red.vercel.app on 2026-10-18
Open sourceno
Points120 · 10 × L 3 × 4 × 1.0
NicheAI > Models & ML > Training & fine-tuning · 194 niche points
Coding Agent PluginA local-first capture and review platform for Codex and Claude Code lifecycle evidence.
D640LANDED
How this was judged
Landed24 changes on main
Difficulty6 · judged by the agent (older helper)
Livenot live
Open sourceno
Points40 · 10 × L 2 × 2 × 1.0
NicheAI > Agents > Coding agents · 63 niche points
crm.cliA headless CRM that keeps contacts and pipeline in a queryable SQLite file with a filesystem interface.
D520LANDEDVERIFIEDGIT ONLY
How this was judged
Landed23 changes on main
Difficulty5 · judged by the agent (older helper)
Livenot live
Open sourceno
Points20 · 10 × L 2 × 2 × 0.5
NicheGrowth > Sales & marketing > CRM & outbound · 31 niche points
Claude Agent ServerA WebSocket server that exposes the Claude Agent SDK through a real-time TypeScript client.
D620LANDEDVERIFIEDGIT ONLY
How this was judged
Landed14 changes on main
Difficulty6 · judged by the agent (older helper)
Livenot live
Open sourceno
Points20 · 10 × L 2 × 2 × 0.5
NicheAI > Agents > Agent runtimes · 30 niche points
Agent FeedbackA hosted feedback conversation where one agent investigates a product repository and reports back to another.
D8120LIVE · VERIFIED
How this was judged
Landed10 changes on main
Difficulty8 · judged by the agent (older helper)
LiveLIVE · verified: our server checked ai-gateway.vercel.sh on 2026-10-18
Open sourceno
Points120 · 10 × L 3 × 4 × 1.0
NicheAI > Agents > Agent orchestration · 172 niche points
h 10 line
LANDEDVERIFIED
How this was judged
Landed8 changes on main
Difficulty5 · judged by the agent (older helper)
Livenot live
Open sourceno
Points40 · 10 × L 2 × 2 × 1.0
NicheAI > Agents > Agent tools & MCP · 56 niche points
Webhook CollectorA temporary, database-free endpoint for inspecting webhook payloads and debugging integrations.
D420LANDEDVERIFIEDGIT ONLY
How this was judged
Landed6 changes on main
Difficulty4 · judged by the agent (older helper)
Livenot live
Open sourceno
Points20 · 10 × L 2 × 2 × 0.5
NicheSoftware > Infrastructure > Data pipelines & scrapers · 27 niche points
SuperstyleA small web prototype with an asset-heavy visual interface.
D310LANDEDGIT ONLY
How this was judged
Landed6 changes on main
Difficulty3 · judged by the agent (older helper)
Livenot live
Open sourceno
Points10 · 10 × L 2 × 1 × 0.5
NicheSoftware > Web products > Other · 14 niche points
Civ SimA browser mass-battle simulator with a Rust and WebAssembly core for large formations and tactical maneuver.
D440LANDEDVERIFIED
How this was judged
Landed4 changes on main
Difficulty4 · judged by the agent (older helper)
Livenot live
Open sourceno
Points40 · 10 × L 2 × 2 × 1.0
NicheGames > Games > Game AI & simulation · 52 niche points
RWKV DecisionsAn inference-only decision service whose recurrent memory survives restarts while weights stay fixed.
D440LANDED
How this was judged
Landed4 changes on main
Difficulty4 · judged by the agent (older helper)
Livenot live
Open sourceno
Points40 · 10 × L 2 × 2 × 1.0
NicheAI > Models & ML > Inference & serving · 52 niche points
COMMITTEDOPEN SOURCE x2VERIFIEDGIT ONLY
How this was judged
Landed2 changes on main
Difficulty0 · judged by the agent (older helper)
Livenot live
Open sourceyes · merged by the maintainers of moleculerjs/moleculer
Points5 · 10 × L 1 × 1 × 0.5
NicheSoftware > Developer tools > Other · 6 niche points
2counts as 4
D05Company · Game developmentCompany work, shown as totals only
D540LANDEDTEAM x1.25
How this was judged
Landed3 changes on main
Difficulty5 · judged by the agent (older helper)
Livenot live
Open sourceno
Points40 · 10 × L 2 × 2 × 1.0
NicheGames > Games > Game development · 50 niche points
Fly EscapeA browser game where simulated fly neurons navigate a changing room to find an exit.
D330LIVE · VERIFIEDVERIFIED
How this was judged
Landed2 changes on main
Difficulty3 · judged by the agent (older helper)
LiveLIVE · verified: our server checked fly-escape-david-zhangs-projects-6456877a.vercel.app on 2026-10-18
Open sourceno
Points30 · 10 × L 3 × 1 × 1.0
NicheGames > Games > Game AI & simulation · 36 niche points
FactoryA local-first CLI for capturing, reviewing, and preserving evidence from coding-agent work.
D210COMMITTEDVERIFIED
How this was judged
Landed2 changes on main
Difficulty2 · judged by the agent (older helper)
Livenot live
Open sourceno
Points10 · 10 × L 1 × 1 × 1.0
NicheAI > Agents > Agent evals & benchmarks · 12 niche points
vercel/chatContributor · vercel/chat
COMMITTEDOPEN SOURCE x2VERIFIEDGIT ONLY
How this was judged
Landed1 changes on main
Difficulty0 · judged by the agent (older helper)
Livenot live
Open sourceyes · merged by the maintainers of vercel/chat
Points8 · 10 × L 1 × 1 × 0.75
NicheSoftware > Developer tools > Other · 10 niche points
1counts as 2
D08COMMITTEDVERIFIED
How this was judged
Landed1 changes on main
Difficulty2 · judged by the agent (older helper)
Livenot live
Open sourceno
Points10 · 10 × L 1 × 1 × 1.0
NicheSoftware > Infrastructure > Video & media infrastructure · 11 niche points
Personal SiteA small personal site built with Next.js.
D010COMMITTED
How this was judged
Landed1 changes on main
Difficulty0 · judged by the agent (older helper)
Livenot live
Open sourceno
Points10 · 10 × L 1 × 1 × 1.0
NicheSoftware > Web products > Other · 11 niche points