Want to learn how to create new backgrounds for Gem Wars? Or add new outfits, costumes, items or unlockables? Or create new challenges? It's all possible with the tools already built into the game.
Learn more from the GameBanana Modding Tutorial page:
https://gamebanana.com/games/6105
The tutorials currently available:
How to Add New Items
https://gamebanana.com/tuts/12516
How to Create New Challenges
https://gamebanana.com/tuts/12514
How to Create New Backgrounds
https://gamebanana.com/tuts/12513