Apps similar to Wicked Engine include Godot Engine, which is free and open source. Other options are Unity, Unreal Engine, GDevelop and Candlestick. There's no shortage of Game Development Tools like Wicked Engine, with more than 100 alternatives for Windows, Linux, Mac, Android and the web.
Platinum Arts Sandbox Free 3D Game Maker is an open source free game maker, free RPG Maker, free sidescroller maker, free Machinima creator, and game design tool that makes it easy for kids and adults to create video games, maps and worlds.
Hypatia is a game engine for single player 2D action adventure games. You can use it to make a game like Legend of Zelda: Oracle of Ages and Oracle of Seasons. Hypatia is aimed at non-programmers and programmers alike.
FPL base is a low level C++ game library developed by Google. It is open source and can be extended by the user or by adding other libraries in the FPL suite: Corgi,Mathfu,Motive,Pindrop,FlatUI and Flatbuffers.
United States
Amulet is a free Lua-based audio/visual toolkit suitable for small games and experimentation. It runs on Windows, Mac, Linux, HTML5 and iOS.
Rogue Engine is a full featured environment for game development using WebGL. Create projects in an intuitive and familiar 3D environment using configurable components made with TypeScript.
AppGameKit is a simple cross platform game development tool that runs on Windows, Linux, MacOS and Raspberry Pi. A version to run on Android and iOS is also available. With AppGameKit you can use a simple Basic like programming language to develop cross platform applications, 2D...
United Kingdom
ZGameEditor lets you create 3D games with procedural content that have a redistributable size of 64 KiB or less. It consists of a lightweight OpenGL-powered engine that runs on Windows, Mac, Linux & Android, and a portable Windows IDE featuring real-time editing.
Sweden
EU
Whitestorm.js is a framework for 3D web apps built with Three.js technology. It implements a core for fast development of a 3D scene with physics.
Russia
Your project’s smart 3D digital twin as a Service. SmartShape (formerly Minko) is a technology to develop and design rich, interactive and universal 3D applications targeting computers, web browsers and mobile platforms.
GeeXLab is a cross-platform demotool for 3D programming, demos creation, game development, interactive applications, creative coding and prototyping.
Maratis is a portable, simple and visual game development tool designed for artists and developers.
FranceEU
Verus Engine is a modern, platform-agnostic 3D game engine. It is developed using C++ and HLSL. It is based on Direct3D 12 and Vulkan graphics APIs. The code is user friendly and well optimized.
EstoniaEU
