๐ฑ Sprout Valley
A cozy, Stardew-style farming game with a rare-crop economy โ built on Solana. Plant, harvest, chase lucky mutations, and grow a farm that's truly yours.
๐ Overview
Sprout Valley is a wholesome farming game in the spirit of Stardew Valley, crossed with a "Grow a Garden"-style rare-crop economy. You're given your own plot in a shared valley: till the soil, plant seeds, water your crops, and harvest them in real time. Rarer crops and lucky mutations are worth dramatically more โ chasing them is the heart of the game.
The design splits cleanly into play-off-chain / own-on-chain: the cozy moment-to-moment farming runs instantly and for free in your browser, while the things you truly own and trade โ the $SPROUT token, rare items, and the player marketplace โ settle on Solana.
๐พ Deep farming loop
19 plants across 8 rarity tiers, value-multiplying mutations, a restocking seed shop, and 5 levelling skills.
๐ A living homestead
Chickens, cows and fruit trees produce passive income โ and breed, so your herd grows itself.
๐ช Real ownership
$SPROUT, a marketplace, and revenue-funded rewards โ designed to be sustainable, never a Ponzi.
$SPROUT token, staking and the marketplace โ rolls out per the roadmap. Sections below are tagged Live, Rolling out, or Roadmap.๐ Quick start Live
- Open the game at sproutvalley.fun (or hit โถ Play). It runs right in your browser โ no install.
- Find โ Your Plot. You farm your own allocated plot in a valley of 20; the camera follows you as you explore.
- Run the loop: Hoe the grass โ plant a Seed โ Water it โ wait for it to ripen โ click to harvest โ sell in the Harvest panel.
- (Optional) Connect a wallet. Phantom or Solflare on devnet shows your address & live SOL balance. Nothing here touches real funds yet.
Controls
| Action | Input |
|---|---|
| Move | WASD or arrow keys (camera follows you) |
| Select tool | 1 Hoe ยท 2 Watering Can ยท 3 Seeds (or click the hotbar) |
| Use tool on a tile | Click a tile within reach (cursor turns red if you can't farm there) |
| Harvest | Click a ripe crop |
| Fish | Click the pond or sea, then click again the moment it bites |
| Panels | Shop ยท Seeds ยท Harvest ยท Animals ยท Upgrades ยท Skills ยท Almanac ยท Coats โ top HUD |
๐ The core loop Live
Everything orbits one satisfying cycle:
๐ช Hoe โ ๐ฑ Plant โ ๐ง Water โ โณ Grow โ ๐งบ Harvest โ ๐ช Sell โ โฌ๏ธ Reinvest
- Watering doubles growth speed, and watered crops earn a Wet bonus (ร1.5 value) at harvest. Rain waters every tilled tile for free.
- Selling crops earns coins (spend on seeds, upgrades, animals) and XP (level up to unlock rarer seed tiers).
- Reinvest into upgrades and rarer seeds โ the loop compounds as you climb the rarity ladder.
๐พ Crops & rarity Live
There are 19 plants across 8 rarity tiers. Each tier unlocks in the shop at a player level, appears less often on restock, and sells for far more. This is the same rarity ladder used across the whole game (crops, fish, and future items).
| Tier | Shop unlock | Restock frequency | Example crops |
|---|---|---|---|
| Common | Lv 1 | Always stocked | Carrot, Spinach, Lettuce, Turnip |
| Uncommon | Lv 2 | Very common | Tomato, Cauliflower, Eggplant |
| Rare | Lv 5 | Often | Beetroot, Cucumber |
| Legendary | Lv 9 | Sometimes | Corn, Pumpkin |
| Mythical | Lv 14 | Rarely | Pink Cabbage, Golden Corn |
| Divine | Lv 20 | Scarce | Blue Rose, Frost Pumpkin |
| Prismatic | Lv 28 | Very scarce | Star Fruit, Moonpetal |
| Celestial | Lv 36 | Legendary drop | Galaxy Fruit, Voidbloom |
The restocking seed shop is the chase: rare seeds only appear sometimes, so you check back and pounce on a good restock. A few representative crops, from humblest to rarest:
| Crop | Rarity | Seed cost | Base value | Grow time |
|---|---|---|---|---|
| Carrot | Common | 9 | 18 | 22s |
| Tomato | Uncommon | 36 | 78 | 42s |
| Cucumber | Rare | 120 | 282 | 78s |
| Pumpkin | Legendary | 300 | 820 | 124s |
| Golden Corn | Mythical | 820 | 2,500 | 172s |
| Frost Pumpkin | Divine | 2,100 | 8,200 | 230s |
| Moonpetal | Prismatic | 6,400 | 30,000 | 285s |
| Voidbloom | Celestial | 26,000 | 145,000 | 400s |
๐The in-game Almanac tracks every plant and mutation you've discovered โ completing the set is its own reward (and an achievement).
โจ Mutations Live
When you harvest, a crop can roll a mutation that multiplies its value. Mutated crops visibly glow and sparkle. The Fortune upgrade and the Farming Fortune perk increase your odds of the good ones.
| Mutation | Value multiplier | Approx. base odds |
|---|---|---|
| Normal | ร1 | ~77% |
| Shiny | ร2 | ~14% |
| Frosted | ร8 | ~4.6% |
| ๐ Gold | ร20 | ~3.1% |
| ๐ Rainbow | ร50 | ~0.8% |
Mutations stack with the Wet bonus (ร1.5). A Rainbow harvest on a high-tier crop is a jackpot moment โ e.g., a watered Rainbow Voidbloom is worth ~10.9 million coins (145,000 ร 50 ร 1.5).
๐ Levels & achievements Live
Harvesting and selling earns XP; rarer crops grant more. Levelling up unlocks higher rarity tiers in the shop, so you naturally graduate from carrots to Celestial blooms. Achievements pay out coin bonuses:
| Achievement | Goal | Reward |
|---|---|---|
| First Sprout | Harvest your first crop | 50 |
| Green Thumb | Harvest 50 crops | 500 |
| Oddity | Find your first mutation | 250 |
| Mutation Master | Find 25 mutations | 3,000 |
| Master Collector | Discover all 19 plants | 12,000 |
| Valley Tycoon | Earn 100,000 coins total | 15,000 |
| Seasoned Farmer | Reach level 10 | 2,000 |
โฌ๏ธ Upgrades Live
Permanent, coin-bought upgrades that compound the economy:
| Upgrade | Max | Effect |
|---|---|---|
| Hoe | 3 | Bigger till area โ up to 7ร7 tiles at once |
| Watering Can | 3 | Bigger watering area โ up to 7ร7 tiles at once |
| Fertilizer | 5 | +15% growth speed per level (up to +75%) |
| Fortune | 5 | +20% mutation luck per level (up to +100%) |
| Shop Supply | 3 | Shop restocks up to 60s faster |
| Sprinkler | 3 | Auto-waters your crops on a timer |
| Market Stall | 5 | +10% crop sale price per level (up to +50%) |
๐ฏ Skills & perks Live
Five skills level 1 โ 20 from the activities you do, each with a smooth per-level passive plus milestone perk choices at levels 5, 10 and 15 (pick 1 of 2), a level-20 capstone, and endless mastery stars beyond 20.
| Skill | Levelled by | Capstone (Lv 20) |
|---|---|---|
| ๐พ Farming | Harvesting crops | Master Farmer โ 15% auto-replant on harvest ยท +15% value |
| ๐ Ranching | Collecting eggs, milk & fruit | Rancher Lord โ +25% product value ยท +6% golden chance |
| ๐ฅ Breeding | Raising baby animals | Master Breeder โ +25% rare babies ยท +20% faster |
| ๐ฃ Fishing | Casting at the water | Legendary Angler โ can hook legendary fish ยท +30% value |
| ๐ Foraging | Gathering wild finds | Forest Spirit โ 6% chance of a gem ยท +30% value |
Example milestone choice (Farming, Lv 10): Fortune (+50% mutation luck) or Bountiful (12% chance a harvest yields two). Builds are yours to shape.
๐ Animals & orchard Live
Your homestead is a passive-income engine. Buy a producer (unlocked by level); it makes a product on a timer that you click to collect for coins + XP. Animals wander a pen; trees stand in the orchard.
| Producer | Cost | Unlock | Produces | Value | Timer |
|---|---|---|---|---|---|
| ๐ Chicken | 150 | Lv 3 | Egg | 28 | 30s |
| ๐ Cow | 600 | Lv 6 | Milk | 85 | 60s |
| ๐ Apple Tree | 500 | Lv 4 | Apple | 120 | 45s |
| ๐ Orange Tree | 900 | Lv 8 | Orange | 230 | 55s |
| ๐ Peach Tree | 1,500 | Lv 12 | Peach | 420 | 70s |
| ๐ Pear Tree | 2,400 | Lv 16 | Pear | 680 | 85s |
Animals spawn in random colours โ keep an eye out for a rare blue chicken or purple cow. Keep a pair and they breed: babies appear and grow into adults, so your herd grows itself (up to a cap you can raise with the Breeding skill).
๐ฃ Fishing Live
Cast at the pond (fresh water) or the open sea (salt water) and play the one-click cast โ bite โ hook minigame: the rod arcs out, the bobber settles, bubbles rise when a fish is interested, then the bobber dunks โ click the moment it does to set the hook. Miss the window and it gets away.
Fish run the same 8-tier rarity ladder as crops, from everyday Minnows up to Celestial white-whales like the Leviathan Eel. The Fishing skill's luck tilts the odds toward rarer catches, and the ocean holds bigger, more valuable species than the pond.
| Tier | Example fish | Value range |
|---|---|---|
| Common | Minnow, Bluegill, Sardine | 12 โ 30 |
| Rare | Largemouth Bass, Rainbow Trout | 150 โ 380 |
| Mythical | Manta Ray, Crimson Betta | 1,500 โ 2,400 |
| Prismatic | Prism Tang, Rainbow Axolotl | 17,000 โ 30,000 |
| Celestial | Void Kraken, Leviathan Eel | 66,000 โ 140,000 |
๐ Foraging Live
Wild finds spawn across the open world โ mushrooms, berries, herbs, and rarer treasures like crystal shards and golden truffles. Gather a node for coins + Foraging XP; nodes respawn over time, and the skill's luck tilts toward rarer finds. The Forest Spirit capstone even gives a chance to turn up a gem.
๐ค๏ธ World & atmosphere Live
๐ Day / night cycle
An in-game clock with sunrise/sunset tints, a soft vignette, and fireflies at night.
๐ง๏ธ Weather
Passing showers roll in and water every tilled tile for free while they last.
๐พ Autosave
Your whole farm โ coins, seeds, harvest, shop and time โ persists locally across reloads.
๐ Sound
Synthesised WebAudio effects (no audio files), with a HUD mute toggle.
๐ฐ Two-currency economy Rolling out
The cozy game stays fast and free; real value lives only at the edges. This is the single most important idea in Sprout Valley's economy โ it's what keeps the game fun and keeps the token honest.
| Layer | On-chain? | Used for |
|---|---|---|
| ๐ช Coins (in-game) | โ Off-chain | The entire cozy loop: seeds, upgrades, animals, day-to-day farming. Instant, free, fun โ and not withdrawable. |
| ๐ฑ $SPROUT (SPL token) | โ Solana | Marketplace currency, premium cosmetics, staking, prestige, and withdrawable rewards. |
| โ SOL (native) | โ Solana | Headline prizes only (seasonal / leaderboard), paid from treasury yield & fees. |
๐ช $SPROUT tokenomics Rolling out
โ ๏ธThis is a design, not a promise. Numbers are starting points to tune. Nothing here is financial advice โ see the disclaimer.
The core principle
Pay out real yield, never printed yield.
Every reward is funded by money that actually came in โ marketplace fees, cosmetic sales, and treasury staking yield. The reward pool can only distribute what it holds, so it can never death-spiral. Rewards are funded only by real revenue โ not by new-player inflows (Ponzi) or token emissions (inflation).
Supply & allocation
$SPROUT launches with a fixed supply for liquidity, treasury and ops โ not as a per-play faucet.
| Allocation | % | Vesting | Purpose |
|---|---|---|---|
| Liquidity (DEX) | 30% | Locked | A tradeable market so $SPROUT has real value |
| Community treasury | 25% | DAO / multisig | Backs the Harvest Pool & seasonal events |
| Ecosystem / future rewards | 20% | Slow release | Long-term reserve โ not auto-emitted |
| Team & dev | 15% | 1yr cliff, 3yr vest | Aligned and anti-dump |
| Launch airdrop (cosmetic-first) | 10% | โ | Reward early players without a cash incentive to farm |
Sinks & faucets
A token only holds value if it's consumed at least as fast as it's earned. Target: sinks โฅ faucets at all times.
| Faucets (earn $SPROUT) | Sinks (spend / burn $SPROUT) |
|---|---|
| Seasonal pool rewards | Premium / rare seeds |
| Quests & bounties | Land / plot expansion |
| Referral rewards | Cosmetic mints (skins, dรฉcor) |
| One-time launch airdrop | Marketplace fees ยท "harvest tax" |
| Burn-to-reroll a mutation ยท Prestige |
Token info
| Ticker | $SPROUT |
| Chain | Solana (SPL token) |
| Contract address | Published at launch โ verify only via official channels |
๐พ Community Harvest Pool Roadmap
A single, transparent, on-chain pool that self-balances โ it pays out only what it takes in each season.
Inflows (real revenue)
A share of marketplace fees ยท a share of cosmetic/premium-seed sales ยท treasury staking yield (never principal) ยท the "harvest tax" sink.
Outflows (capped โค inflows)
Seasonal rewards ยท quests & bounties ยท referral rewards ยท a small slice of SOL top prizes.
The rule: season payout โค pool balance. If revenue dips, payouts shrink โ the system bends, it never breaks.
Rewards favour contribution, not hours
Paying per hour invites bots and ruins the cozy vibe. Instead, each season the pool splits by a contribution score built from things bots can't cheaply fake: Almanac discoveries, collection/quality milestones, achievements, and decorated-farm "likes" from other players โ with only modest, diminishing-returns weight on raw volume.
๐ Staking โ the Garden Vault Rolling out
Lock $SPROUT in the Garden Vault for a cozy, tiered boost to your farm โ and to qualify for the seasonal reward pool. Bigger stakes and longer locks earn bigger boosts.
| Tier | Stake | Boost (stacks with skills & upgrades) |
|---|---|---|
| ๐ฑ Seedling | Small | +5% crop value & growth |
| ๐ฟ Sapling | Medium | +10% value & growth ยท +10% mutation luck |
| ๐ธ Bloom | Large | +15% value & growth ยท +20% luck ยท +1 daily rare-seed slot |
| ๐ Harvest Moon | Whale | +20% across the board ยท a share of the Community Harvest Pool |
- Time-lock + unstake cooldown โ longer locks earn bigger multipliers; the cooldown blocks flash-loan/flip gaming. Locking supply is also a gentle sink that supports the token.
- Staking = reward-eligibility โ the same lock that boosts your farm also makes you eligible for seasonal rewards, which doubles as Sybil resistance (fake accounts cost more than they earn).
- Boosts stay modest โ a cozy bonus, never a pay-to-win wall.
๐ Marketplace Roadmap
A player-to-player marketplace for rare crops, mutations and items โ priced in $SPROUT and settled by an on-chain escrow program (list, fill, cancel). This turns the rare-crop chase into a real, player-driven economy.
A small marketplace fee is the main engine of the Community Harvest Pool: trading activity funds the rewards that flow back to engaged players. Wash-trading and self-dealing are excluded from fee-funded reward scoring.
๐บ๏ธ Roadmap
Launch day & first weeks
| When | Milestone |
|---|---|
| 5 min | ๐ Developer tokens locked for 6 months |
| 10 min | ๐ DexScreener paid listing live |
| 10โ60 min | ๐ ๏ธ Live bug fixes & economy tuning |
| 4 hrs | ๐ฎ Content update |
| 8 hrs | ๐ฎ Content update |
| 12 hrs | ๐ฐ Staking goes live |
| 18 hrs | ๐ Marketplace opens โ earn $SPROUT |
| 24 hrs | โจ Content update |
| 2 weeks | ๐ฑ Mobile app launches |
Build milestones
- Done M0 โ Playable game: the full single-player cozy game, polished and persistent.
- Now M1 โ $SPROUT SPL token: the on-chain currency; shop & rewards settle in real tokens.
- Next M2 โ Authoritative anti-cheat & land ownership: server/chain-verified harvests; plots as on-chain assets.
- Next M3 โ Items on-chain: harvested produce (with rarity/mutation) as on-chain items.
- Next M4 โ Marketplace: escrow-based P2P trading for $SPROUT.
- Later M5 โ Depth: seasons, more content, quests, social/multiplayer.
- Later M6 โ Polish & mainnet: audits, settings, cloud saves, mainnet deploy.
๐ก๏ธ Fair play & anti-cheat Roadmap (M2)
Honesty first: the game is 100% client-side today (your save lives in your browser). That's perfect for a free single-player game โ and it means no real value can be attached to it yet, because a client-trusted save could be edited or botted. Making value-minting trustworthy is a hard prerequisite for any withdrawable reward.
Before $SPROUT/SOL is ever on the line, the architecture moves to an authoritative server + on-chain settlement hybrid: the client predicts and renders, but the server owns the clock, the RNG and the economy, and only it (and the chain) can credit rewards.
| Threat | Mitigation |
|---|---|
| Save tampering | Server/chain is the source of truth; the local save is a cache only |
| Clock / time-warp | Server owns time; growth is computed from server timestamps |
| RNG manipulation (re-rolling mutations) | Server-seeded RNG (commit-reveal) or on-chain VRF for high-value rolls |
| Botting & Sybil | Rate limits, per-wallet/season caps, stake-to-earn, contribution scoring |
| Wash trading | Graph/heuristic detection; self-dealing excluded from rewards |
๐The free, single-player cozy mode stays client-side forever. Only the rewarded / on-chain mode uses the authoritative path, so the cozy experience is never burdened by latency.
โ๏ธ Solana & your wallet Live (devnet)
Sprout Valley is built for Solana โ fast, cheap transactions suit a game with frequent actions. Today you can connect Phantom or Solflare on devnet to see your address and live SOL balance; in-game coins remain an off-chain placeholder for the planned $SPROUT token.
- Install Phantom (or Solflare) and switch the network to Devnet.
- Click Select Wallet in the game and approve the connection.
- Grab free devnet SOL from the faucet to experiment.
๐Sprout Valley will never ask for your seed phrase or a transaction that drains your wallet. Connecting only shares your public address. Devnet only for now โ nothing touches real funds.
โ FAQ
Is the game free to play?
Yes. The entire cozy farming loop is free and runs in your browser. $SPROUT, the marketplace and rewards are an optional layer at the edges โ you never have to spend to enjoy the game.
Do I need crypto or a wallet to play?
No. You can play the full game with no wallet at all. Connecting a Solana wallet (devnet) is optional and currently just shows your address and balance.
Is it pay-to-win?
No. Boosts from staking and cosmetics are deliberately modest, and progression is driven by playing โ not by buying power. Rewards favour contribution (discoveries, quality, collections), not raw spend or grind.
How do players actually earn real value?
Through the revenue-funded Community Harvest Pool: a share of marketplace fees, cosmetic sales and treasury yield is paid out each season, split by contribution. It's a cozy bonus, not a salary โ and it can only ever pay out what it took in.
What stops bots from draining the rewards?
Bots can farm free off-chain coins all they like โ that's worthless. The reward layer is server/chain-authoritative with per-wallet caps, contribution scoring, stake-to-earn and bot/wash-trade detection. See fair play.
When does $SPROUT / staking / the marketplace go live?
See the roadmap. These roll out in stages; staking and the marketplace require the token mint and authoritative anti-cheat to be in place first.
Where do I find the official contract address?
Only from our official website and verified social channels. Treat any address DMed to you as a scam.
Will my farm be wiped?
Your single-player save persists locally. As on-chain features and cloud saves arrive, we'll communicate any migrations clearly in advance.
โ๏ธ Disclaimer
Sprout Valley is a game. The tokenomics, staking and reward designs described here are proposals under active development and may change; figures are illustrative starting points, not guarantees of value, yield or returns. Nothing on this page is financial, investment, or legal advice. $SPROUT is a utility token intended for use within the game and its ecosystem; it is not an investment contract and should not be purchased with an expectation of profit. Digital assets are volatile and you may lose value. Real-money / withdrawable features are subject to anti-cheat readiness, liquidity, and legal/regulatory review (including securities, gambling, money-transmission, tax, age and geographic restrictions), and may be limited, gated or unavailable in your jurisdiction. The game currently operates on Solana devnet; always verify the official contract address through our official channels and never share your seed phrase. Play responsibly.