pricing

The engine is free, forever.

Everything the product does is MIT licensed and stays free: the canvas, the Docker runtime, real networking, the validator, and every node. The paid products are content that runs in that free engine: advanced scenarios with commented solutions, bought once, with no subscription.

free forever

$0

MIT licensed, permanently

  • The full local engine: canvas, Docker runtime, real networking, terminals, DB explorers
  • Every node. There is no paid tier of nodes and there never will be
  • The validation engine and step player
  • Three flagship roadmaps
  • The open roadmap format, so you can write and import your own

$ npx torollo start

source on GitHub

pack #1 · production systems

$29 one-time

two advanced scenarios + commented solutions

  • Advanced PostgreSQL (roles, RLS & SECURITY DEFINER): multi-tenant data isolation enforced in the database itself
  • Queues, crash recovery & idempotent workers: jobs that survive a worker dying mid-task
  • Commented solutions for every step: the why behind each architecture choice, and the interview traps that come with it
  • Delivered as a file you import into the app; no account needed, yours to keep

Not on sale yet · launching soon

becomes $39 when scenario #3 lands; existing buyers get it free

founding 3-year pass

$149 one-time

early price for 100 seats, then $199

  • Every pack, current and future, for three years
  • Today that means Pack #1; future packs are covered the day they ship
  • Founder badge
  • A private founders channel with a direct line to the roadmap

Not on sale yet · launching soon

a fixed three-year term, no auto-renewal

Why is the engine free?

The engine, every node and the roadmap format are MIT licensed in the public repository, so free access does not depend on our future pricing decisions. The paid products are scenario packs: content files that run inside that free engine.

How do purchases work?

Payments are handled by Stripe. You get an email with a download link within a minute and import the pack into the app. There is no account, license server, or DRM, and every purchase can be refunded within 14 days without questions.

Buying for a team or teaching a product?

We work with infrastructure vendors and engineering teams directly.