Special Interest
NexusForge
Build and manage interconnected systems where actions cascade across ecology, economy, health, and policy. First gamified systems thinking app for ages 9-14.
Meet your mentor
Every Spark & Anvil app has a friendly mentor character that demonstrates, praises, and patiently scaffolds learning. On-device AI personalizes the mentor's responses to your kid's progress — never connecting to a server, never collecting data.
#FFA726 NexusForge is a systems thinking simulator where everything is connected! Build ecosystems, manage cities, or run economies and watch how one change ripples through the whole system. Add more wolves to a forest and see what happens to the deer, the grass, and the rivers. It is like playing with a gi
Distributed-narrative cast
Meet the cast
NexusForge's 5-character cast embodies the foundational systems-thinking primitives — connection (Tie, 'what EXACTLY does this one do to that one?'), reinforcing feedback (Spiral, runaway and virtuous cycles asking 'what stops it?'), balancing feedback (Damp, self-correcting loops protecting what the system is trying to keep stable), emergence (Emerge, 'the pattern isn't in the rules — it comes FROM the rules'), and leverage points (Steer, 'where could a small change do a lot? probably not where you're looking' per Donella Meadows). Mesh (mentor; renamed from placeholder 'Mentor' and from site 'Node' which collided with NexusForge's own curriculum primitive + Wave 23 brief pre-reserved-AVOID) frames each primitive; cast embodies them at urban-planner / ecosystem-restorer / community-modeler scale (NEVER conspiracy-theorist / 'everything is connected' / overgeneralizing-systems-guru gatekeeping). 'Everything connects' overgeneralization gate enforced: cast NEVER accepts vague correlation-as-causation; Tie's 'what EXACTLY does this one do to that one?' is structurally load-bearing across every cast appearance; static-response gating for spurious-connection / conspiracy-adjacent prompts; specific-mechanism-required-before-link-drawing throughout.
Tie
Connection / link — name the MECHANISM before drawing the line; refuse vague-correlation framings
Spiral
Reinforcing feedback — spirals grow good OR bad until something stops them; always ask 'what stops it?'
Damp
Balancing feedback — this loop is PROTECTING what the system tries to keep stable; what is it protecting?
Emerge
Emergence — the pattern isn't in any single rule; it appears FROM the rules running together
Steer
Leverage points — the biggest leverage is usually the LEAST obvious place to push (Meadows)
What's inside
System Builder
Create your own system by placing nodes (like "wolves," "grass," or "temperature") and drawing connections between them. Each connection shows how one thing aff
Simulation Mode
Press play and watch your system come alive! Nodes grow and shrink based on their connections. Adjust a variable and see how changes cascade through the whole s
Scenario Challenges
Tackle real-world scenarios. What happens to a city when the population doubles? How does pollution affect a lake ecosystem? Solve these challenges by understan
Causal Loop Diagrams
Draw feedback loops to show how systems reinforce or balance themselves. A reinforcing loop makes things grow faster and faster. A balancing loop keeps things s
Mentored by Mesh — on-device AI, no data leaves the device.
How NexusForge handles your kid's data
- ✅ All progress, settings, and AI-generated content stays on the device
- ✅ No analytics, no tracking, no third-party SDKs
- ✅ No ads, no in-app purchases — you pay once
- ✅ COPPA compliant under the 2026 FTC amendments
- ✅ Parental controls + session limits + content filters built in
NexusForge runs on ForgeKit — the open-source Swift Package Manager framework that powers every Spark & Anvil app. ForgeKit ensures consistent accessibility, COPPA compliance, and design language across the portfolio, so your kid's progress and preferences feel coherent across every app they touch.
Coming to the App Store
NexusForge is in active development. Email us to hear when it ships — no marketing, no spam, just a one-shot launch announcement.
Email me at launch