Learn by doing

How games are made and the business behind them, in 30 short lessons. You move the numbers, read the real documents, then check yourself.

30 lessons6 paths30 hands-onEvery one sourced

Try it · Critical thinkingARC Raiders, players on Steam

Move the window. The headline writes itself.

ARC Raiders players up 444%

Sep 26 to Oct 13: from 30,012 to 163,265 players.

Sep 26Sep 29Sep 30Oct 6Oct 7Oct 8Oct 9Oct 10Oct 12Oct 13Oct 14Oct 15

Highest of Postgame's Steam samples each day, 2026. Days without a sample are left out: Sep 27 and 28, Oct 1 to 5, and Oct 11.

FromSep 26

ToOct 13

Every one of these headlines is true. Picking the window that suits the story is cherry-picking.

Try it · Programming

A game server steps its world a fixed number of times a second. Slide to see the gap between two steps.

15.6 ms between ticks at 64 a second

0 ms6 ticks in 100 ms100 ms

Ticks a second64

Try it · Finance

The money is booked at the till. The accounts count it as revenue month by month, as the game keeps delivering.

Counted as revenue$9Still deferred$18

Months since the purchase9

Roblox spreads bookings over the estimated life of a paying user: 27 months at Dec 31, 2025. A straight line here, to keep it simple.

Read a share price, a filing and a payout the way the numbers actually work.

15 lessons · about 52 min

Tap a word for what it means, in one sentence.