Gone are the days when Game developers have to script down lines and lines of codes on days and days of programming. Today, be it beginners, intermediate or advanced level Game Designers/Programmers, they take the help of game engines to bring in their best. The engines let you to concentrate on challenges and leave most technicalities to the engine.
In that case, what are the game engines that you can trust to work with for your game? Here we give you a small list of top five best game engines. Definitely, there is more that you can explore and experiment.

Unity
This cross-platform game engine from Unity Technologies is so popular and rigid to develop video games for PC, consoles, mobile devices and Websites.

Key features:
• Easy to use
• Has lots of tutorials and quality resources in place
• Emphasizes on Portability
• Suits any level of designing
• Eases the creation of interactive 3D content
• Enables creation of any type of game
• Free download available for everyone
• Has a huge list of supported platforms, including Windows, Blackberry, Android, Linux, Adobe Flash, PlayStation, Xbox etc
• Allows specification of texture compression and resolution settings for each platform
• Great community support

Few Notable Games Developed using Unity:
• Temple Run
• Lara Croft Go
• Escape Plan
• Pillars of Eternity
• Monkey Quest
• Her Story
• Kerbal Space Program

Unreal Engine
Developed by Epic games, this was first showcased in 1998 as a game engine to develop first-person shooter games. Later, it was updated to develop games of other genres including Stealth, MMORPGs, and other RPGs. Its success has been rewarded with "the most successful video game engine” award from the Guinness World Records.

Key features:
• High Degree of portability
• Can be customized to high degree to develop unique games
• Has C++ source code and Blueprint Scripting
• Can create 2D, 2.5D and 3D games
• Multiplatform
• Easiest to handle for professionals

Few Notable Games Developed using Unreal:
• Gears of War
• Adventure Pinball: Forgotten Island
• Mortal Combat X
• Dsney’s Brother Bear
• Dr.Brain: Action Reaction
• Harry Potter and the Chamber of Secrets
• Harry Potter and the Philosopher's Stone
• Star Trek: The Next Generation: Klingon Honor Guard

CryEngine
Designed by the German game developer Crytek, this is well-known for its outstanding graphics. Though it is not quite easy for beginners to handle, it is the excellent to develop best-looking games, as it houses multi-award winning graphics. This is also quite easy, once learned, as it works on the principle ‘what you see is what you play’. This can be said as an all-in-one development solution that gives best output in terms of graphics, audio and unique challenges.

Key features:
• Scalable computation
• Realistic physics
• State-of-the-art lighting
• Intuitive visual scripting
• High fidelity audio
• Designer friendly AI
• Enables quick development of quality games

Few Notable Games Developed using CryEngine:
• Robinson: The Journey
• Sniper: Ghost Warrior 3
• ASTA: The War of Tears and Winds
• SNOW
• Start Citizen
• Prey

RAGE Engine
Rockstar Advanced Game Engine (RAGE) developed by RAGE Technology Group at Rockstar, San Diego has been used on several different platforms such as Microsoft Windows, Nintendo Wii, PlayStation 3 and 4 and Xbox 360. It is widely popular for its multi-functionality.

Key features:
• Handles large streaming worlds and weather effects
• Handles complex A.I. arrangements
• Fast network code
• Multitude of gameplay styles
• Attractive Graphics

Few Notable Games Developed using RAGE:
• Grand Theft Auto V
• Red Dead Redemption
• Midnight Club: Los Angeles

GameMaker: Studio
Developed by Mark Overmars in the Delphi programming language, this enables you to create games of different genre through drag and drop action sequences or a sandboxed scripting language known as Game Maker Language. This is highly suitable for novice programmers.

Key features:
• Simple to use
• Lets you free from handling multi-threading and memory management
• Primarily used for games with 2D graphics and minimal 3D graphics

Few Notable Games Developed using GameMaker:
• Super Crate Box
• Spelunky
• Hotline Miami
• Hyper Light Drifter

Apart from these, there are lot more like Hero Engine, Havok Vision Engine, ShiVa3D, GameSalad, EGO Engine, Anvil Engine, Avalanche Engine, Naughty Dog Game Engine etc that you can explore and experiment. Remember that every engine has a unique feature to offer. Learn about most of them, before you select the best one for your game.