The 4A Engine is a graphics middleware engine developed by 4A Games for use in its video games Metro 2033, Metro: Last Light, Metro Exodus, and Arktika.1. It supports Direct3D APIs 9 through 12, OpenGL 3.2, Nvidia PhysX, [1] and Nvidia 3D Vision.

All 4A engines have a displacement of 1,587 cc (1.6 L). The cylinder bore was enlarged from the previous 3A engines at 81 mm (3.19 in), but the stroke remained the same as the 3A at 77 mm (3.03 in), giving it an over-square bore/stroke ratio which favours high engine speeds.

4A-Engine is a complete game development framework designed for Xbox 360®, PLAYSTATION®3 and DirectX9/DirectX10 - equipped PCs, providing the vast array of core technologies, content creation tools, and support infrastructure.

另外还有《地铁系列》，由4A games开发的4A Engine，出色的光追表现，画质和枪械细节表现一流，只是优化有些差强人意。 《如龙》系列由龙引擎开发，独特的格斗体验值得一试。

A graphics middle-ware engine developed by 4A Games for use in their video game Metro 2033, published by THQ. It supports Direct3D APIs 9, 10, and 11, along with NVidia's PhysX, and also NVidia's 3D Vision.

The basic 4A was a SOHC inline four (I4) 8-valve carburettor-equipped engine which produces 78-90 hp (58-67 kW) at 4800 rpm, torque: 85 lb·ft (115 N·m) at 2800 rpm. The power and torque output figures vary between different regions of the world.

2010年3月9日 · 4A Engine是一款先进的3D游戏引擎，支持dx11和PhysX技术，具备全局光照、实时反射等功能，并实现了多线程渲染以充分利用多核CPU资源。 该引擎还支持3D模式，并能在不同平台上使用同一套代码。

2025年1月13日 · Toyota 4A-GE 引擎应该是1980年代至1990年代最为著名的日系引擎之一，虽然这具引擎的排气量只有1.6L，但是实际上在当年还算是有不错的输出，最重要的是它和 AE86 一起因为动漫而爆红，而今天我们就来回顾一下这具引擎吧！

2017年3月30日 · Toyota A系列引擎早在1970年代就开始研发，但是排气量1.6L的4A-GE在1980年代才登场，4A-GE的汽缸盖是由Toyota的老伙伴Yamaha所开发的，它在在1983年首次搭载在AE86和其他的Toyota车款上，不过在当时而言AE86的性能其实没有特别的出色，不过在AE86上这具引擎是纵置的，因为 ...

Latest build for Windows is demo/windows_build.zip. Unzip and run 4a-engine.exe. After git clone run. then create build/ folder if needed, cd in it and run. Any pull-requests and advices about OpenGL and C++ are welcome. Simple 2d rpg game engine. Contribute to ProtaX/4a-engine development by creating an account on GitHub.