Unreal Engine 

A really powerful game engine used by Epic Games. Very beautiful and popular engine, one of the very best engines out there for video games. It very popular because it supports practically any platform it's put on (PC, XBox, Gamecube, PS2, etc... and even Mac)

A great deal of the gameplay code is written in UnrealScript, a proprietary scripting language, and as such large parts of the gameplay can be modified without delving deep into the engine internals. As with other middleware packages, the Unreal Engine provides various tools to assist with content creation for designers and artists.

It has 3 versions: 1 (1998-2002), 2 (03-06), and 3 (06-future)

Some games/franchises that use Unreal Engine

Unreal Tournament
Unreal Championship
Gears of War
Red Steel
Deux Ex
Tom Clancy's Splinter Cell
Tom Clancy's Rainbow Six
Mass Effect
Lost Odessey
Too Human
Brothers in Arms

Unreal Engine by Rockin' Ruler of Metallic Meyhem June 17, 2007

Unreal Engine 

Known as UE, Unreal Engine is an Engine known to make high quality games such as Mortal Kombat 11, Poppy Playtime, Garten of Banban, etc. This Engine is available in the 5th version as this definition is being written. It's one of the concurrents of Unity, Godot, and Game Maker Studio

Person 1: Unreal Engine is better than Godot, do you agree?

Person 2: I prefer Godot, but Unreal Engine isn't bad.

Unreal Engine by SlammerGaming0 November 9, 2023

Unreal Engine 

The Fortnite engine

Unreal Engine, the Fortnite engine.

Unreal Engine by Soulex November 6, 2021

Unreal Engine Slop

A term that originated in 2025 (But got popularized due to Clair Obscure: Expedition 33 winning Game of The Year) to describe games that have been created with the game engine Unreal Engine 5

In general, these games usually consist of photo-realistic, open-world settings that prioritize flashy graphics with high ray tracing instead of gameplay and optimization, leading to janky messes that most PCs and consoles can barely run at 60 FPS.

-Dude, how did expedition 33 win Game of The Year?!
-I know, right? That game is straight up Unreal Engine Slop.

Unreal Engine Slop by Suhnsett December 24, 2025