What official material confirms

The Steam store says cereal boxes can contain a super-rare foil card. Steam's public achievement list also includes two foil collection goals: A True Fan for a full foil set and The Collector for all foil cards.

Those official sources establish foil cards as a distinct collection goal. They do not publish the probability of finding one, a guaranteed result after a fixed number of boxes, or a complete list of foil cards.

Foil, rarity, and condition are different checks

Do not treat printed rarity, card condition, and foil status as interchangeable.

  • Foil status belongs to the dedicated foil collection goals.
  • Card condition affects value and can create repair or trading decisions.
  • Printed rarity is another card property and does not prove a foil result.

The official material does not confirm the community claim that every base card has a foil version. Use the current cards reference for documented base cards, but keep the foil checklist separate unless an official source or a verifiable in-game record supports the match.

Acquisition guidance

Search trash piles for cereal boxes and open boxes as part of the normal collection loop. The August 22 official update increased cereal box appearance and added a late progression purchase option: after all attributes are at maximum, Jenny sells a cereal box for $10,000.

That purchase option becomes available after the stated progression condition at the documented current price. The official note does not say how often it can be used, and it does not establish that a purchased box guarantees a foil card.

See the cereal box guide for the current price, progression gate, and achievement caveat.

Track collection progress conservatively

Keep a simple record of foil cards you have actually obtained and use the Steam achievement milestones as official completion signals. Preserve a separate good save before testing any workaround connected to missing progress.

Avoid advice that promises:

  • a precise foil drop rate;
  • a guaranteed box sequence;
  • a pity counter;
  • a complete foil list without direct evidence;
  • a fixed farming time.

None of those details appears in the saved official sources as of August 25, 2026.