Physical NFC cards that grow digital creatures and earn cryptocurrency.
Seedlings is a collectible card game where physical NFC cards grow digital creatures that earn cryptocurrency.
You buy a card. You tap it with your phone every 48 hours. Each tap grows your creature and earns you $DEW tokens. When you're ready, you tear the card along a perforated line — permanently converting your creature into an NFT on the blockchain.
Every Seedlings card contains an NXP NTAG 424 DNA TT chip — the same bank-grade NFC technology used in contactless payments and secure authentication. Each chip is cryptographically unique and tamper-evident.
The physical card shows only its material design. You don't know which creature or element is inside until your first tap. It's a mystery reveal.
Hold your phone to the card. The NFC chip generates a cryptographically signed URL containing encrypted data. The backend verifies authenticity (AES-128 encryption + CMAC), checks the tamper status, and awards $DEW tokens.
One tap every 48 hours. No app download required. Works on any NFC-enabled phone.
Each tap advances your creature through growth stages:
| Stage | Scans Required | All Materials |
|---|---|---|
| Seed | 0 (unscanned) | Same image for all |
| Seedling | 1 | ✓ |
| Sprout | 2+ | ✓ |
| Growing | 8+ | ✓ |
| Blooming | 20+ | ✓ |
| Mature | 40+ | ✓ |
The base six stages are universal — every card, Paper to Palladium, reaches Mature at 40 scans. Growth speed is identical. What differs is the $DEW earned along the way.
Mature is not the end for premium materials. After reaching Mature, higher-tier cards continue evolving through additional stages with blind choice branching — irreversible decisions between cryptic options that shape your creature's unique appearance.
| Material | Total Stages | Beyond Mature |
|---|---|---|
| Paper | 6 | — |
| Polymer | 7 | +1 evolution stage |
| Steel | 10 | +4 evolution stages |
| Silver | 15 | +9 evolution stages |
| Gold | 20 | +14 evolution stages |
| Palladium | 25 | +19 evolution stages |
Premium cards don't grow faster — they grow further. Every card reaches Mature at the same speed. Premium materials unlock deeper evolution beyond that point.
Each card has a tamper-evident tab connected to the NFC chip's antenna loop. When you tear it:
No mint fee. Ever. Your $DEW goes to your wallet.
You can snap at any time. Early snap = smaller creature, less DEW earned. Late snap = fully grown creature, maximum DEW. But waiting means risking the card getting lost or damaged.
This tension — between earning more and locking in your achievement — is the core of Seedlings.
| Material | EUR | USD | $DEW / Tap | Lifetime $DEW | Stages |
|---|---|---|---|---|---|
| Paper | €9.90 | $10.59 | 2.5 | 680 | 6 |
| Polymer | €19.90 | $21.29 | 5 | 1,820 | 7 |
| Steel | €39.90 | $42.69 | 10 | 5,460 | 10 |
| Silver | €79.90 | $85.49 | 25 | 22,750 | 15 |
| Gold | €149.90 | $160.39 | 50 | 63,700 | 20 |
| Palladium | €299.90 | $320.89 | 100 | 182,000 | 25 |
$DEW per tap rates are set at launch and may be adjusted by Seedlings Studio to maintain ecosystem sustainability. Any changes apply to future scans only — earned $DEW is never affected.
Every card contains one of 16 unique characters belonging to one of 5 elemental clans:
Characters: Piki, Morko, Viiru, Kallio, Lumi, Rauta, Sumu, Kipina, Syva, Pyry, Helmi, Tuuli, Sammal, Kide, Varjo, Tahti
Elements: Forest, Fire, Water, Mountain, Shadow
Each material-character-element combination is unique. A Steel Piki of the Fire clan exists only once. This creates 480 possible unique cards across the full collection.
The physical card shows only its material tier. Character and element are revealed on the first NFC tap. You never know what's inside until you scan.
Seedlings is an open universe — there is no fixed cap on the total number of cards or characters. New characters, clans, and eras will be added based on demand. The Genesis Collection is the first, not the only.
| Parameter | Value |
|---|---|
| Name | $DEW (Digital Environment Water) |
| Blockchain | Hedera Hashgraph (HTS) |
| Type | Fungible Token |
| Total Supply | 100,000,000 (fixed, immutable) |
| Pre-mine | 0 |
| Decimals | 8 |
Hedera Hashgraph offers transaction finality in 3–5 seconds, fees under $0.001, carbon-negative consensus, and native token support without smart contracts. NFT royalties are enforced at the protocol level — they cannot be bypassed.
| Pool | $DEW | % | Purpose | Lock Period |
|---|---|---|---|---|
| Card Emission | 80,000,000 | 80% | NFC scan rewards | Progressive emission |
| Liquidity | 8,000,000 | 8% | DEX trading pairs | 3-year lock + 2-year vest |
| Reserve | 5,000,000 | 5% | Price stabilization | 5-year lock |
| Team | 5,000,000 | 5% | Development | 2-year cliff + 3-year vest |
| Ecosystem | 2,000,000 | 2% | Bonuses, partnerships, events | Case by case |
Key principle: 80% of all $DEW is earned through real physical activity — tapping NFC cards. No pre-mine. No insider allocations. No venture capital tokens.
No governance. Seedlings Studio makes all decisions regarding token parameters, emission rates, and ecosystem management.
100 million $DEW is a fixed supply. Every scan consumes from the Card Emission pool. Without management, the pool eventually empties.
Seedlings does not use algorithmic halving or automatic emission reduction. Instead, card production is the primary adjustment lever:
This gives Seedlings Studio direct, transparent control over the token economy without relying on complex automated mechanisms.
A minimum of 20% of all physical card sale revenue is allocated to $DEW buyback from DEX pools. Buybacks are executed weekly to create steady, predictable demand.
This creates a direct link between physical product sales and token value: every card sold generates guaranteed buy pressure on $DEW.
| Period | Active Cards | Annual Emission | Cumulative | % of Pool |
|---|---|---|---|---|
| Year 1 | ~56 | ~120,000 | 120,000 | 0.15% |
| Year 3 | ~360 | ~760,000 | 1,640,000 | 2.1% |
| Year 5 | ~600 | ~1,260,000 | 4,160,000 | 5.2% |
| Year 10 | ~1,500 | ~3,150,000 | 15,810,000 | 19.8% |
Projections assume 70% scan activity rate and weighted average DEW/scan of 11.5 across material mix. Actual emission depends on cards sold and scanner behavior.
$DEW launches with two DEX trading pairs on SaucerSwap:
| Pool | Size | Purpose |
|---|---|---|
| USDC / $DEW | ~$2,500 | Stablecoin access |
| HBAR / $DEW | ~$2,500 | Hedera-native access |
Total initial liquidity: ~$5,000, targeting approximately 25% of fully diluted market cap at launch.
Two pools give traders a choice: stablecoin stability (USDC) or Hedera-native trading (HBAR). Liquidity is deepened monthly from card sale revenue and Liquidity allocation releases.
LP tokens are locked for 3 years, then vest linearly over 2 years. Liquidity cannot be pulled during the lock period.
Snapping a card mints an NFT on Hedera containing complete scan history, growth stage, character, element, material, evolution choices, and cryptographic proof of physical card destruction.
No mint fee. Your accumulated $DEW stays in your wallet.
Every Seedlings NFT carries a 10% royalty enforced at the Hedera protocol level. It cannot be removed or bypassed.
Every minted NFT generates a physical collectible trading card — printed, numbered, and sold through the website. Players create the product. Every snap decision generates new inventory.
Four legendary characters form the foundation of the Seedlings universe. These are Palladium-tier cards held by the founding team, not available for sale:
Their $DEW production counts toward the Team allocation. Origin Four collectible cards ship free with every Genesis order.
| Material | Qty | EUR | USD | Revenue | Lifetime $DEW |
|---|---|---|---|---|---|
| Paper | 32 | €9.90 | $10.59 | €317 | 21,760 |
| Polymer | 20 | €19.90 | $21.29 | €398 | 36,400 |
| Steel | 14 | €39.90 | $42.69 | €559 | 76,440 |
| Silver | 8 | €79.90 | $85.49 | €639 | 182,000 |
| Gold | 4 | €149.90 | $160.39 | €600 | 254,800 |
| Palladium | 2 | €299.90 | $320.89 | €600 | 364,000 |
| Total | 80 | €3,113 | 935,400 |
Genesis 80 lifetime emission = 935,400 $DEW = 0.94% of total supply.
| Material | Price | Lifetime $DEW | $DEW / €1 |
|---|---|---|---|
| Paper | €9.90 | 680 | 68.7 |
| Polymer | €19.90 | 1,820 | 91.5 |
| Steel | €39.90 | 5,460 | 136.8 |
| Silver | €79.90 | 22,750 | 284.7 |
| Gold | €149.90 | 63,700 | 424.9 |
| Palladium | €299.90 | 182,000 | 606.9 |
Premium materials offer significantly more $DEW per euro invested.
Seedlings rewards consistent care through multiple bonus mechanics. All bonuses are percentage-based, adjustable, and funded from the Ecosystem allocation (2M $DEW). Base $DEW per scan is never affected by bonus mechanics.
Every scan has a random chance of triggering a bonus multiplier on that scan's $DEW reward. Higher multipliers are rarer. Creates excitement on every tap.
Consecutive scans (no missed cooldown windows) build an increasing bonus percentage. Miss a scan and the streak resets — but base $DEW is always earned in full. Pure reward for consistency.
One-time percentage bonuses triggered at key lifetime scan counts. Celebrates long-term commitment.
Enhanced reward on your first scan (mystery reveal moment) and at each growth stage transition. Marks the moments that matter most.
Owning multiple active cards adds a small percentage bonus to every scan across all your cards. Rewards ecosystem participation.
Limited-time bonus campaigns targeting specific clans, materials, or the entire ecosystem. Creates recurring engagement moments throughout the year.
| Layer | Technology |
|---|---|
| Blockchain | Hedera Hashgraph (Mainnet) |
| Token Standard | Hedera Token Service (HTS) |
| NFT Royalties | HIP-17 (protocol-level enforcement) |
| NFC Chip | NXP NTAG 424 DNA TT |
| Authentication | AES-128-CBC + AES-CMAC |
| Tamper Detection | TagTamper (hardware loop) |
| Backend | Node.js + Express |
| Database | PostgreSQL (Supabase) |
| Audit Log | Hedera Consensus Service (HCS) |
| Frontend | Progressive Web App |
| Phase | Milestone |
|---|---|
| Genesis Launch | 80 NFC cards, DEW tracking, mystery reveal |
| Token Creation | $DEW created on Hedera HTS |
| Wallet Linking | Connect Hedera wallet to NFC card |
| Balance Migration | Genesis holders' DEW transferred to wallets |
| DEX Listing | SaucerSwap dual pools (USDC + HBAR), buyback begins |
| Snap-to-Mint Live | NFT minting, HTS royalties active |
| Collectible Cards | Physical cards from minted NFTs |
| Era 2: Growth | New characters, expanded universe |
| Era 3: Bloom | Specialist characters, advanced mechanics |
| Principle | Detail |
|---|---|
| Fixed supply | 100,000,000 $DEW — never increases |
| Adjustable scan rates | Set by Seedlings Studio, changes apply to future scans only |
| Fixed cooldown | 48 hours — never shorter |
| No pre-mine | Zero tokens created before launch |
| No pay-to-win | Nothing accelerates growth speed |
| Snap is permanent | Physical + cryptographic irreversibility |
| No mint fee | Snap costs nothing. Your $DEW stays yours |
| Pool isolation | Separate accounts, no automatic transfers |
| Royalties enforced | 10% at protocol level, cannot be removed |
| No governance | Seedlings Studio makes all ecosystem decisions |
| Open universe | No cap on future cards, characters, or eras |
Snap-to-Mint — A physical card that cryptographically destroys itself to create a permanent NFT. Not a gimmick. A genuine, irreversible transformation verified by hardware.
Scan-Based Token Economy — 80% of $DEW supply is earned through physical NFC scanning. Card production controls emission. Weekly buybacks from product revenue create sustained demand.
Reverse Mint Collectibles — Player decisions create real products. Every snapped NFT generates a physical collectible card for the broader market. Players build the catalog.
The system is simple to use (tap your phone), deep to master (when do you snap?), and built to last (production-managed emission with buyback support).