Most money games award you points. These don't. Every result here comes out of the same arithmetic as our calculators — so when a game tells you you'll retire at 48, that's a number you could check by hand. Free, no sign-up, nothing saved.
The same faces turn up across the games. They each want something different from you — and only one of them is on your side about the long run.
It would be easier to score these with invented points. We don't, for one reason: a money game that teaches you the wrong relationship between numbers is worse than no game at all.
So Burn Rate runs the same calculation as the FIRE calculator — target is annual spending × 25, contributions are income minus spending, growth compounds at 7% a year. If your spending ever catches your income, it honestly reports that you never get there, because that is what the arithmetic says.
Trolley Trouble uses plain unit-price division, and its "best possible basket" was found by exhaustively checking every valid combination before the game shipped — so the target you're chasing is genuinely the optimum, not a guess.
Return assumptions (7% nominal) and the 4% withdrawal rule are conventional planning conventions, not predictions. These are teaching games, not financial advice.