I will build inventory, crafting and secure save and load game systems


About this gig
Hello! Are you building an RPG, Survival, or Strategy game and need robust data architecture? I specialize in creating modular Inventory Systems, Crafting mechanics, and bulletproof Save & Load systems in C# for Unity games.
What I can implement for you:
- Inventory Systems: Grid-based, slot-based, drag & drop, item stacking, equipment stats, hotbars.
- Crafting Systems: Blueprints, recipes, queuing, loot boxes, chest interaction systems.
- ScriptableObject Databases: Easily add new items without changing code!
- Save & Load Systems: Encrypted JSON/Binary formats, multi-slot saves, auto-save triggers, scene transition persistence.
- Anti-Cheat Security: Encrypted save files to prevent players from editing progress.
Why choose me?
- No data corruption or memory leaks rock-solid performance.
- Fully customizable item database via the Unity Inspector.
- Clean C# code ready for mobile, PC, or console.
Contact me BEFORE placing an order so we can select the right serialization method for your game!
Get to know Adam M
Unity Game Developer
- FromPoland
- Member sinceJul 2026
Languages
English, Polish
Other Game Development Services I Offer
FAQ
How easy is it to add new items to the system later?
It’s incredibly easy. I use Unity’s ScriptableObjects to create an Item Database. You can add, edit, or remove items (names, descriptions, icons, stats, 3D models) directly inside the Unity Inspector without touching a single line of code.
Do you provide the UI artwork and graphics?
My main focus is C# programming and systems architecture. I can use free/placeholder UI assets or Unity's default UI to build the system. If you have custom UI assets (sprites, icons), I will integrate them perfectly.
Do you use PlayerPrefs for saving data?
For the Basic package, PlayerPrefs can be used for minor data like audio settings. However, for gameplay progression, inventory, and player stats, I use robust JSON or Binary serialization written directly to the application's persistent data path, as it's far more secure and scalable.
How hard will it be for me to add new data to the save file in the future?
Extremely easy. I structure the system using a centralized GameData class or interface. To save a new variable (like a new weapon unlocked), you just add it to the data script, and the system handles the encryption and saving automatically.
Can you encrypt the save files so players can't modify them?
Yes! In the Premium package, I implement AES encryption or custom XOR hashing. This turns the save file into an unreadable string of characters, preventing players from easily editing their gold, health, or level progress through text editors.
Will this system work on Mobile (Android/iOS) and WebGL?
Yes. I write cross-platform C# code that automatically adapts to the target platform’s file system rules (using Unity's Application.persistentDataPath).

