Buildbox is a no-code game development platform with drag-and-drop editors for 2D and 3D games. Its AI generates assets, levels, and game logic. Non-programmers use it to create and publish mobile games.

Ren'Py is the standard engine for visual novels with AI-assisted dialogue generation, character art creation, and branching narrative tools for interactive storytelling.

GDevelop is an open-source, no-code 2D game engine with visual event-based logic. It supports behaviors, physics, and multi-platform export. Its AI assistant helps generate game assets and suggest event logic, making game creation accessible to complete beginners.

Modl.ai is a pioneering AI-driven game testing platform that automates bug detection, playtesting, and difficulty tuning using deep reinforcement learning. Its AI agents simulate thousands of player behaviors to identify bugs, balance issues, and usability problems that human testers might miss. Modl.ai automatically categorizes and reports issues, provides heatmaps of player behavior, and suggests difficulty adjustments based on testing data. Game developers use it to dramatically reduce QA testing time, catch edge-case bugs, and ensure balanced gameplay experiences before launch.

Core is a free game development platform with AI-assisted asset creation, terrain generation, and multiplayer networking for creating and publishing 3D games.

Defold is a free, cross-platform game engine focused on 2D game development. It features a visual editor with Lua scripting, live debug on devices, and instant hot-reload. Mobile game developers appreciate its small runtime size and efficient asset pipeline.