Academics
RailForge
Drive the cart to the ore — and prove it can be done. Read a little program (move, turn, “keep going while you can”), predict the route the cart takes across the track, then watch it drive. Walls block, the edge stops you, and a built-in solver guarantees every puzzle really is solvable and tells you the shortest program. Read-before-you-run navigation — the loops-and-logic of getting somewhere. A drive-the-code lab. Ages 9–14.
▶ Play it nowBuilt for sittings of about 20 minutes on the screen. That is our design budget, not a measurement.
Meet your mentor
Every Spark & Anvil app has a friendly mentor character that demonstrates, asks, and patiently scaffolds learning.
#2563eb Characters who teach
Meet the cast
RailForge's track crew each read one part of a cart program, so you can see the route before it runs.
Railwright
(The one you teach) - builds tracks before driving them — you teach her to drive every cell
Trackley
remembers which way the cart faces after a turn
Tunnel
knows a keep-going loop stops at the first thing in the way
Par
counts the cells and the repeats until they match
What's inside
Learning goal
Drive the cart to the ore — and prove it can be done. Read a little program (move, turn, “keep going while you can”), predict the route the cart takes across the track, then watch it drive. Walls block, the edge stops you, and a built-in solver guarantees every puzzle really is solvable and tells you the shortest program. Read-before-you-run navigation — the loops-and-logic of getting somewhere. A drive-the-code lab. Ages 9–14.
How RailForge handles your kid's data
- ✅ All progress, settings, and AI-generated content stays on the device
- ✅ No analytics, no tracking, no third-party SDKs
- ✅ Free — no ads, no in-app purchases
- ✅ No personal information collected from children — in line with COPPA (updated by the 2026 FTC amendments)
- ✅ No chat with strangers — play-together rooms use a short code and preset emotes, never typed messages