GameMaker

Hiro is a client-server library built on the Nakama game server to rapidly and flexibly add economy, social, and LiveOps features to your game. It is available as a C# library for Unity Engine, a C++ library for Unreal Engine, and a server package that integrates with the game server. Hiro offers a comprehensive suite of battle-tested metagame features that are quick to implement, allowing developers to focus more on the core gameplay experience. Add base and loot table rewards for players to collect; integrate soft or real currency purchases; define stackable and consumable gameplay items; initialize and manage multiple currencies within the game economy. Adapt store bundles and offer walls based on player behavior; personalize various aspects of the player experience through experiments; schedule live events for players to participate in and earn exclusive rewards. Start and schedule timed or scored events with exclusive rewards; enable players to request and share inventory.

MonoGame is a free and open-source framework that allows developers to create cross-platform games using C# and other .NET languages. It supports multiple platforms, including Windows, macOS, Linux, Android, iOS, PlayStation 4, PlayStation 5, Xbox One, and Nintendo Switch. MonoGame provides a comprehensive set of features, such as 2D and 3D rendering, sound playback, input handling, and content management, enabling the development of high-quality games across various genres. The framework is a re-implementation of Microsoft's XNA 4 API, ensuring familiarity for developers with XNA experience. Notable games developed with MonoGame include "Streets of Rage 4," "Carrion," "Celeste," and "Stardew Valley." MonoGame is actively maintained by the MonoGame Foundation and its community, with ongoing updates and support.