Ages 8 and upNo reading wallsWorks on tabletsNothing to install
The adventure trail
Play them in order. Each game adds one new idea and gives it a real job to do.
For grown-ups
Every game saves progress in the browser it was played in. No accounts, no data collected, nothing to install.
Short sessions win. Twenty minutes, then stop, even mid-level. Leave them wanting more.
Let them drive. Ask "what should Robo do next?" instead of telling. Bugs are the best part: "he went the wrong way, cool, let's find out why."
Stars are optional. Every level passes on any working solution. The three-star rating is there for kids who like to polish, not a requirement to move on.
Garden Maker is the secret weapon. Once they've played a few games, ask them to build a puzzle for you. Designing a level teaches more than solving one.