1.Unreal Engine.

It is a very powerful game engine even upgraded for AAA games. It is developed by Epic Games Inc. first showcased in 1998 it supports both programming and non-programming mode, it means it is best engine for both programmers and 3d designers etc. Some of the games that are developed on this engine that you have played once in your life are PUBG, Fortnite, Batman:Arkham series etc. and this game engine is totally free. It is a 3D game engine

2.Unity.

It is a game engine best for beginners as well as professionals this game engine is not upgraded for AAA games but still it is a very powerful engine it’s multimedia features makes it more powerful. It is developed by Unity Technologies. Ltd. first version was launched in 2005 and till today it is gaining a lot of faim in world of game development. This game engine also supports both programming and non-programming interface. This game engine is available in three versions personal the free version, pro and plus they both are paid versions of it. Some of the best games are Assassins Creed Identity, Monument Valley, Subway Surfers, Temple Run etc. It is a both 3D and 2D game engine.