A reproducible career for each date
Daily challenge does not add extra decisions or secret events. Its difference is the seed: it uses the current date so runs from that day are reproducible. Identity, position, academy and event choices still matter, so two people can finish with different outcomes.
Verifiable rules
The player starts at 17, receives a small opening boost and has a base retirement age of 32. There is one decision per season. Clubs remain fictional and generated, while the engine uses the same attributes, condition values and events as the rest of the game.
Comparing results
At the end you can share a 1080×1350 card or a challenge link containing score, peak rating, goals and trophies. The link lets another person try to beat that result; it is not a full replay of every decision.