Booster packs
A fixed-size bundle of randomized cards purchased or earned as a unit, the primary way players acquire new cards in constructed card games. Hearthstone's card packs and Magic: The Gathering Arena's boosters both use randomized packs to drive collection-building, create rarity-based excitement (the chance of pulling a legendary), and generate a steady monetization and engagement loop tied to new set releases. Designers use booster packs to pace collection growth, to create anticipation and a small dopamine hit on each open (unwrapping is deliberately theatrical in most implementations), and to tie the game's economy to periodic content drops (new sets sold as new packs). Key decisions: pack size and rarity distribution (guaranteed rare/legendary slots are now near-universal to avoid feeling like a total loss), duplicate protection or disenchant/craft systems that convert unwanted pulls into something useful, pricing relative to in-game currency earn rate, and pack-opening presentation. Pitfall: packs with no duplicate protection or crafting outlet make collection completion feel like pure gambling with no player agency — modern card games near-universally include some form of dust/wildcard system to soften this.
- Dev effort: Small
- Timing: Real-time or turn-based
- Common in: card-game
Seen in
- Hearthstone
- Magic: The Gathering Arena