๐ START HERE โ New Player Guide
โ Buy USDT on BSC
Connect MetaMask or Rabby โ BSC network (Chain ID 56)
Purchase min $12.50 USDT (recommended; $10 min possible)
โก Build Mercury
$12.50 โ 12,500 Energy
Place Mercury planet (10,000 E) โ ~2,500 E left for upgrade
โข Do Expedition NOW
Once every 24h (cooldown timer shown)
Bonus = 12.8h of production โ huge!
Never skip this.
โฃ Wait 24h โ Upgrade
After 1 day, upgrade your Mercury
This triggers an on-chain TX
Your first Plasma appears!
โค Daily Routine
โข Do Expedition (24h cooldown)
โข Swap 1 Plasma โ 2 Energy (ร2 rate!)
This TX = your daily "claim"
Syncs all real on-chain balances
Reinvest to grow faster
๐ก Estimated ROI: 45โ60 days with consistent daily swaps + reinvestment
๐ Current Status
Where we are in development.
๐ Mainnet Live
Cosmic Yield is now live on BSC Mainnet (Chain ID: 56). All core gameplay features are implemented, tested, and fully functional with real USDT.
โ What's Working
- On-Chain Gameplay: Buy energy, place planets, upgrade buildings, earn plasma, launch Galaxy Expeditions
- Wallet Integration: MetaMask and Rabby wallet support
- Web3 Transactions: All in-game actions execute on-chain with confirmation
- Real Rewards: Convert plasma to USDT directly to your wallet
- Referral System: Earn rewards by inviting friends
- Practice Mode: Play offline with full feature set
- Mobile Web Version: Play on-the-go with optimized interface and real-time data sync
๐ฎ Coming Next
- Multichain Expansion: Base, Arbitrum, and other networks
- Advanced Mechanics: Alliance system, events, and seasonal content
- Achievements & Badges: Unlockable milestones and player recognition
Welcome to Cosmic Yield
Build your space mining empire. Earn real rewards. Conquer the cosmos.
What is Cosmic Yield ?
Cosmic Yield is an innovative blockchain-based space mining investment game that combines idle gameplay mechanics with real financial rewards. Build and upgrade mining facilities across 8 different planet types, manage dual resources (Energy and Plasma), and watch your investment grow through strategic optimization.
Unlike traditional games, Cosmic Yield offers a practice mode where you can learn the mechanics without any wallet connection, making it perfect for beginners. When you're ready, switch to on-chain mode to earn real USDT rewards.
- 360 tiles to build your cosmic empire
- 8 unique planet types with different production rates
- Dual resource economy: Energy for building, Plasma for profit
- Daily Galaxy Expeditions for bonus energy rewards
- Convert Plasma to USDT anytime
Game Mechanics
Planets & Buildings
Your empire consists of mining planets placed on a 360-tile grid. Each planet produces Energy and Plasma every hour. Planets range from basic Mercury facilities to advanced Neptune stations, with higher-level planets costing more but producing significantly better yields.
Dual Resources System
Energy (โก) - Used for building new planets and upgrading existing ones. Earned through daily production and Galaxy Expedition rewards. Cannot be withdrawn.
Plasma (๐) - Your profit currency that can be converted to USDT. Earned through daily production from your planets. Can be swapped to Energy at a 1:2 ratio for faster expansion.
Upgrades
Each planet can be upgraded up to 9 levels (Level 1 through Level 10). Each upgrade costs 25% of the planet's base cost and increases production by 25% of the base rate. Upgrades are a cost-effective way to boost production without using more tiles.
A Mercury planet costs 10,000 Energy and produces 4/hour. Upgrading to Level 2 costs 2,500 Energy and adds +1/hour production. By Level 10, the same planet produces 13/hour.
Swap System
Strategic resource swapping is key to optimal growth. Convert Plasma to Energy at a 1:2 rate when you need to expand quickly. Be smart on reinvestment to minimize your time to ROI.
Galaxy Expeditions
Engage in daily Galaxy Expeditions to earn bonus Energy. Expedition rewards are calculated based on your total production rate (perHour ร 12.8), meaning the more you produce, the bigger your daily expedition bonus. This creates a powerful compound growth effect.
Getting Started
Practice Mode
Start your journey in Practice Mode - no wallet connection required ! This mode lets you:
- Learn game mechanics risk-free
- Experiment with different strategies
- Understand the upgrade system
- Test the ROI calculator
- Master resource management
Your progress is saved locally, so you can practice as long as you need before committing real funds.
๐ On-Chain Mode (LIVE on BSC Mainnet)
Once you're comfortable with the mechanics, connect your BSC wallet to play with real investments. Your Plasma earnings can be converted to USDT and withdrawn at any time. The game runs 24/7, generating passive income even while you're away.
๐ฑ Mobile Version
Play Cosmic Yield on-the-go with our optimized mobile web app. Click "Play on Mobile" from the home page to access the mobile interface.
Mobile Features:
- Bottom Navigation: Quick access to Home, Energy, Planets, Battle, Profile screens
- Interactive Modals: Raid Modal with win-chance slider, TX Modal with real-time status
- Background Music: Toggle music on/off (persists in settings)
- Compact UI: Optimized for portrait mode, touch-friendly buttons
- Real-time Data: Same blockchain accuracy as desktop version
- Instant Exit: Quick return to homepage with one tap
Pro Tip: Use mobile for quick battles and energy management, desktop for strategy planning and documentation reading.
Cosmic Yield is a high-risk investment game (DeFi degen game). This is not a safe investment. You are dealing with smart contracts on the blockchain, and there are real financial risks involved:
โข Smart contract risk: Bugs or exploits could result in loss of funds
โข Market risk: Token/crypto prices may fluctuate unpredictably
โข Liquidity risk: You may not be able to exit positions quickly
โข Total loss risk: You could lose 100% of your investment
Only invest funds you are prepared to lose completely. Never invest money you need for essential expenses. Use the ROI calculator as a reference only, not a guarantee. This is gambling with high varianceโtreat it accordingly.
Frequently Asked Questions
ROI Calculator
Our advanced ROI calculator simulates your investment growth over time using the same algorithms as the game. It considers:
- Daily Energy and Plasma production from your planets
- Daily Galaxy Expedition rewards based on your production rate
- Smart reinvestment strategy that automatically swaps Plasma to Energy when beneficial
- Optimal building and upgrade paths to maximize efficiency
The calculator shows you exactly how many days it takes to reach ROI (recover your initial investment) and how many days to reach 2ร returns. It also provides a detailed action log showing every build, upgrade, expedition, and swap decision.
Enter your desired USDT investment amount (10-100,000), and the calculator simulates up to 400 days of gameplay. It uses efficiency-based algorithms to determine the optimal planet types to build and the best times to swap Plasma for faster expansion. The results show your final Plasma balance, daily production rates, total tiles used, and complete timeline of actions.
Referral Program
Invite friends to Cosmic Yield and earn rewards! The referral system is fully active on mainnet.
How It Works
- Share Your Link: Give your unique referral link to a friend. When they buy Energy for the first time, they can use your link to set you as their referrer.
- Earn Building Rewards: Every time a recruit places buildings or upgrades them, you automatically receive 10% of the Energy they spent as a bonus.
- Track Recruits: View the total number of friends who joined through you in the game dashboard.
Example
Your recruit places 3 Mercury planets (10,000 Energy each = 30,000 total spent). You automatically receive 10% ร 30,000 = 3,000 Energy bonus. Later, they upgrade those planets (cost: 7,500 Energy per upgrade). You earn another 10% ร 7,500 = 750 Energy bonus per upgrade. These rewards stack as your recruits keep building!
Key Details
- Referral Link Format: Your wallet address appended as
?ref=ADDRESSwhen inviting friends - Reward Trigger: 10% Energy bonus when recruits place buildings or upgrade buildings only
- No Rewards On: Swaps, buys, sells, or battles โ only construction activities trigger rewards
- Reward Type: Energy โ instantly credited to your wallet
- Recruit Counter: Shows total friends who joined through your link
- No Limits: Earn from unlimited recruits with no expiration or cap
- Passive Income: Rewards accumulate automatically as your recruit network grows and plays actively
- First-Time Referral Only: A referrer is set only on the recruit's first Energy purchase
- Active Players Only: Your link must be from an active Cosmic Yield player to set you as referrer
- Building Focus: Referral rewards incentivize expansion and growth, not speculation
Tokenomics
Economy Overview
Cosmic Yield operates on a dual-token economy designed for sustainability and growth. Energy circulates within the game ecosystem for building and upgrading, while Plasma represents real value that can be extracted as USDT.
Energy Supply
Energy enters the system through USDT deposits (1 USDT = 1,000 Energy) and Galaxy Expedition rewards. It exits through building costs and upgrade costs. The swap system allows Energy to be created from Plasma at a 1:2 ratio, enabling strategic liquidity.
Plasma Economics
Plasma is generated through hourly production from planets. Players can convert Plasma to USDT (1,000 Plasma = 1 USDT) or swap to Energy for expansion. The system is designed so early investors who use smart reinvestment can achieve strong ROI while maintaining sustainability.
Swap Rates
The 1:2 swap ratio (1 Plasma โ 2 Energy) creates interesting strategic choices. Converting Plasma to Energy for expansion can accelerate growth but delays profit-taking. The ROI calculator helps determine the optimal balance.
The game economy is designed for long-term sustainability. New player investments fund withdrawals of existing players, similar to how early investors in growing platforms benefit from network growth. The smart reinvestment system and efficiency-based building encourage healthy ecosystem growth.
Planet Types & Production Rates
There are 8 planet types, each with different costs and production rates. Higher-level planets are more efficient (better production per Energy spent) but require larger upfront investments.
Mercury
Rocky volcanic planet
Venus
Toxic atmosphere world
Earth
Blue water planet
Mars
Red desert world
Jupiter
Giant gas planet
Saturn
Ringed gas giant
Uranus
Ice giant world
Neptune
Deep blue ice giant
Higher-level planets have better production-to-cost ratios (efficiency). The smart building algorithm prioritizes efficiency, building the most efficient planet you can afford. This maximizes your production rate and accelerates ROI.
Official Links
- Documentation (You are here)
- Follow on X
Roadmap
โ Phase 1: Practice Mode (LIVE)
- Full game mechanics available offline
- 8 planet types with upgrade system
- Galaxy Expeditions and swap systems
- ROI calculator
- Complete documentation
๐ Phase 2: On-Chain Launch (MAINNET LIVE โ )
- โ BSC Mainnet smart contract deployed and verified
- โ Wallet connection (MetaMask, Rabby) via ethers.js v6
- โ USDT deposits (buyEnergy) and withdrawals (sellPlasma)
- โ On-chain planet placement and upgrades
- โ Galaxy Expedition system with energy rewards (BattleResult events)
- โ Plasma โ Energy swap (2ร rate)
- โ Referral system with sponsor tracking
- โ Dynamic TVL banner (real-time USDT balance)
- โ The Graph subgraph for leaderboard and ROI tracking
- โ Leaderboard Top 10 by production rate
- โ Smart contract security audit completed (HazeCrypto)
๐ฎ Phase 3: Community & Growth
- โ Referral rewards program (integrated)
- โ Active player tracking (The Graph live)
- โ Real-time leaderboards (Top 10 by production rate + ROI)
- โ Mobile Web Version (iOS/Android optimized interface)
- โณ Player achievements and milestones
- โณ Multichain expansion (Base, Arbitrum, etc.)
Smart Contract
The Cosmic Yield smart contract is now deployed on BSC Mainnet with real USDT. All core features have been thoroughly tested and audited. Players can now invest real capital and earn genuine returns.
Network: BSC Mainnet (Chain ID: 56)
Contract Address: 0x9bE62095D1D8446Cc2233715aaA24E7e0d02aDC1
USDT Contract: 0x55d398326f99059fF775485246999027B3197955 (18 decimals)
Status: โ
Live on Mainnet
The smart contract handles:
- USDT deposits (buy Energy)
- Planet building and upgrade logic
- Resource production and claiming
- Plasma to USDT withdrawals
- Galaxy Expedition energy rewards distribution
This is a high-risk DeFi game. You can lose everything. Before you deposit any funds:
โ Verify this is the correct contract address: 0x9bE62095D1D8446Cc2233715aaA24E7e0d02aDC1 on BSC Mainnet
โ Only use funds you can afford to lose completely
โ Never borrow money to play this game
โ Understand that smart contracts can have bugs or be exploited
โ Check gas prices and confirm you understand each transaction
You are fully responsible for your investment decisions and any losses incurred. Play only what you can afford to lose.
Security Audit
The Cosmic Yield smart contract has been audited by HazeCrypto. View the complete audit report for full transparency on security findings and verification. You can access the full audit results directly from HazeCrypto.
Mainnet Status
- โ All core functions audited and live on BSC Mainnet
- โ buyEnergy() - USDT deposits working (10 USDT = 10,000 energy)
- โ placeBuildings() - On-chain planet placement verified
- โ upgradeBuilding() - Upgrade system functional
- โ sellPlasma() - USDT withdrawals confirmed
- โ swapPlasmaToEnergy() - 2ร swap rate verified
- โ battle() - Galaxy Expedition system with event parsing working
- โ Cross-account interactions tested (manager fee distribution)
The smart contract has been independently audited by HazeCrypto. The audit verifies that the contract logic is sound, funds are secure, and there are no vulnerabilities or backdoors. View full audit report







