If you want a platform that makes it easy to incorporate user-generated content and mods into your games, mod.io is a top contender. The all-in-one service spans PC, console and mobile games and comes with a robust API, SDK and plugins for popular game engines like Unity and Unreal Engine. It's got features for content moderation, monetization, live metrics and a range of tools to manage user-generated content, so it's a secure and scalable way to keep players engaged.
Another strong contender is Microsoft Azure PlayFab, a suite of services for building and running live games on multiple platforms. It includes multiplayer services, live operations, real-time analytics and data services. Its pay-as-you-go pricing and scalability means it's good for developers small or large, letting them concentrate on making a compelling player experience while keeping their business running smoothly.
If you're interested in AI-generated assets and real-time multiplayer abilities, Dreamlab is a good option. The game engine lets developers build games on the web and collaborate in real time, using AI to generate game assets. It also has a grant and support program for developers, so it's a relatively low-cost option for building multiplayer games quickly.