Unity Multiplayer Card Game (4 Players, Real-Time) – Photon + Firebase – MVP Development
Budget: $800 – $1,000 USD
JOB DESCRIPTION:
I am building a real-time multiplayer 4-player card game (2v2 team-based) and I’m looking for an experienced Unity developer to develop a clean, scalable MVP with a strong foundation for future growth.
This project will be developed under my company “Zentronix”, and I am looking for a serious, long-term developer who understands multiplayer systems, performance, and anti-cheat architecture.
CORE FEATURES (MVP SCOPE)
Multiplayer System
4-player real-time gameplay (2 vs 2 teams)
Auto matchmaking (table-based entry system)
Room-based system (persistent table behavior)
Random player assignment
Turn-based gameplay with timer (auto-play on timeout)
Disconnect & reconnect handling (state restore)
Card Game Logic
13 cards per player
Turn order system
Trick-based gameplay (Rung-style)
Team-based win/lose logic
Table & Coin System
Multiple tables based on entry fee:
500, 1000, 2500, 5000, 10000 coins
Coins locked at match start
Win/loss distribution at end
Player remains at table if enough coins available
Option to switch/leave table
Ad-Based Recovery System (IMPORTANT)
Rewarded ads integration (user-triggered only)
If player coins < 500:
ads available to earn coins
If coins ≥ 500:
ads limited (once per day)
Server-side validation of ad rewards
UI / Screens
Home screen
Table selection screen
In-game table UI
Profile screen (stats, coins, win rate)
Leaderboard
Backend & Security
Firebase (or PlayFab) for:
user data
coins
leaderboard
Server-authoritative validation for:
game state
coins
No client-side trust for critical data
Ads Integration
Google AdMob (rewarded ads only)
No forced ads
Smooth integration without interrupting gameplay
TECH REQUIREMENTS
Unity (C#)
Photon (PUN or Fusion – explain your choice)
Firebase or PlayFab
GitHub version control
IMPORTANT REQUIREMENTS
Must have experience in real-time multiplayer games
Must understand anti-cheat systems
Must build scalable architecture (future features like tournaments, marketplace)
Clean, well-structured, and documented code
DELIVERABLES
Full source code (GitHub – under my ownership)
All accounts under my control (Firebase, Photon, Ads)
Working APK builds per milestone
Documentation + setup guide
BUDGET & TIMELINE
Budget: $800 – $1000 (Milestone-based)
Timeline: 4–6 weeks (MVP)
IMPORTANT NOTES
No full upfront payment
Payment will be released per milestone after testing
Developer must work on client-owned accounts
WHEN APPLYING, PLEASE ANSWER:
Share links/demos of multiplayer games you have built
Which Photon version will you use and why?
How will you ensure all 4 players see the same game state?
How will you prevent cheating (especially coin system)?
What happens if a player disconnects mid-game?
GOAL
Build a stable, cheat-resistant MVP that can later scale into a full competitive multiplayer game platform.
I am building a real-time multiplayer 4-player card game (2v2 team-based) and I’m looking for an experienced Unity developer to develop a clean, scalable MVP with a strong foundation for future growth.
This project will be developed under my company “Zentronix”, and I am looking for a serious, long-term developer who understands multiplayer systems, performance, and anti-cheat architecture.
CORE FEATURES (MVP SCOPE)
Multiplayer System
4-player real-time gameplay (2 vs 2 teams)
Auto matchmaking (table-based entry system)
Room-based system (persistent table behavior)
Random player assignment
Turn-based gameplay with timer (auto-play on timeout)
Disconnect & reconnect handling (state restore)
Card Game Logic
13 cards per player
Turn order system
Trick-based gameplay (Rung-style)
Team-based win/lose logic
Table & Coin System
Multiple tables based on entry fee:
500, 1000, 2500, 5000, 10000 coins
Coins locked at match start
Win/loss distribution at end
Player remains at table if enough coins available
Option to switch/leave table
Ad-Based Recovery System (IMPORTANT)
Rewarded ads integration (user-triggered only)
If player coins < 500:
ads available to earn coins
If coins ≥ 500:
ads limited (once per day)
Server-side validation of ad rewards
UI / Screens
Home screen
Table selection screen
In-game table UI
Profile screen (stats, coins, win rate)
Leaderboard
Backend & Security
Firebase (or PlayFab) for:
user data
coins
leaderboard
Server-authoritative validation for:
game state
coins
No client-side trust for critical data
Ads Integration
Google AdMob (rewarded ads only)
No forced ads
Smooth integration without interrupting gameplay
TECH REQUIREMENTS
Unity (C#)
Photon (PUN or Fusion – explain your choice)
Firebase or PlayFab
GitHub version control
IMPORTANT REQUIREMENTS
Must have experience in real-time multiplayer games
Must understand anti-cheat systems
Must build scalable architecture (future features like tournaments, marketplace)
Clean, well-structured, and documented code
DELIVERABLES
Full source code (GitHub – under my ownership)
All accounts under my control (Firebase, Photon, Ads)
Working APK builds per milestone
Documentation + setup guide
BUDGET & TIMELINE
Budget: $800 – $1000 (Milestone-based)
Timeline: 4–6 weeks (MVP)
IMPORTANT NOTES
No full upfront payment
Payment will be released per milestone after testing
Developer must work on client-owned accounts
WHEN APPLYING, PLEASE ANSWER:
Share links/demos of multiplayer games you have built
Which Photon version will you use and why?
How will you ensure all 4 players see the same game state?
How will you prevent cheating (especially coin system)?
What happens if a player disconnects mid-game?
GOAL
Build a stable, cheat-resistant MVP that can later scale into a full competitive multiplayer game platform.