Start with the cards.
Understand the numbers.
Extreme Demon Gacha turns Geometry Dash Extreme Demon levels into collectible cards. This is a companion guide, not the game itself.
Guide prepared November 14, 2026 · game mechanics can change.
Enter the original game.
Go to demongacha.com and use its Discord sign-in. New players need a Discord account at least 30 days old under the currently reported rules. You do not need to connect a Geometry Dash account.
Let your pack bank fill.
The current published guide describes one free pack every 10 minutes, with a storage limit of 10. Offline accumulation stops when that bank is full. Bonus packs may be separate. That makes 144 free packs a theoretical daily ceiling, not a realistic promise for every player.
Open a pack.
The public rates API specifies 5 cards per pack and a 10% Holo chance per card. Each card has its own published probability. Harder-ranked levels are generally rarer; a famous level does not necessarily have a high rarity.
Collect, compare, then trade.
Your real collection remains in the original game. Use its collection filters to find missing cards. Our trade score checker can compare the point impact, but player demand and collector preferences are not market prices derived from a formula.
Why the next copy adds less.
The score model used here counts Holo copies first at three times the card's value. Later copies are weighted by their position: the second contributes one half, the third one third, and so on. A card's published value can vary within its rarity tier.
| Example: 1,000-point card | Added points | Total |
|---|---|---|
| First normal copy | 1,000 | 1,000 |
| Second normal copy | 500 | 1,500 |
| Third normal copy | 333.33 | 1,833.33 |
| One Holo + one normal | 3,000 + 500 | 3,500 |
The probability data has been checked against the public API. The score model is based on currently published game descriptions and companion documentation; authenticated gameplay was not tested. Treat your in-game score as the final reference.
Try trading your only Bloodbath, then compare the same offer with a spare copy.
What the odds actually mean.
A probability of “1 in 4,646 packs” describes average waiting time. It does not guarantee a pull by pack 4,646. With independent draws, roughly 36.8% of players would still miss the target after that many packs. The card odds calculator makes that distinction visible.
Crafting, clans and duels.
The original game also has trading, clan features and a beta duel mode. Current companion documentation reports crafting temporarily paused. These features can change quickly; consult the game interface and official announcements before committing cards.
Sources and scope.
- Original game's public rates API: card count, probabilities, rarity, card values and Holo rate.
- Original game rules: the final reference for account and trading restrictions.
- Gacha Demon's game guide: secondary reference for login restrictions and the copy-weighted score model.
Practice without signing in: open the pack simulator →