Unity Asset – Rex Engine: Advanced 2D Game Engine v1.03

Rex Engine is a robust, precise 2D game engine filled to bursting with classic game mechanics. It's the ultimate love letter to 2D (or 2.5D!) gaming, and it's a fantastic way to get your game up and running quickly, with or without code!

With Rex Engine, you can get a 2D sidescroller up and running in minutes. It provides easy hooks to swap in your own art, animations, and music, and gives you endless customization options to create and customize your very own killer sidescroller.

Jam-Packed with Mechanics

Rex Engine gives you access to a huge variety of character mechanics and abilities. You can make characters that move, jump, climb, use attacks, and much more. Rex Engine makes it easy to add new abilities to characters: you simply select them and add the ability from the menu, without needing to type a single line of code!

Rex Engine also goes in-depth with these mechanics, letting you mix, match, and customize them to make your game feel unique.

Classic 2D Physics

Rex Engine comes with its own custom 2D physics engine, styled after platformers of the 8 and 16-bit eras. Its physics are responsive and perfectly-tailored to making 2D platformers that play like the classics. It even has features like sloping terrain and the ability to flip gravity upside-down at will.

Customizable and Extendable

Rex Engine is easy to build on top of. This package comes with the full source code, all of which is documented, commented, and organized so you can easily extend it.

A non-exhaustive list of Rex Engine features includes:

Physics
Custom 2D physics engine
Sloped terrain
One-way platforms
Moving platforms
Alter or reverse gravity

Core Mechanics
Walk/run
Swim
Fly
Glide
Jump, muti-jump, flutter jump, wall jump
Dash (and dash-jump and air dash in 8 directions!)
Climb ladders and stairs
Crouch (and crouch-walk)
Climb up/slide down
Hang from ledges
Push and pull objects

Attacks
Melee
Projectiles
Charge shots
Reflect projectiles
Bounce on enemies
Ground pound

AI
Rex Engine comes with a complete enemy AI system which lets you customize complex enemy patterns and behaviors directly from the Inspector with no coding required.

Other Features
Energy bars
Lives system
Scoring system
Dialogue box
Checkpoints
Bottomless pits
Breakable item blocks
Piece multiple scenes together into full levels
Powerups, including powerups to restore health and increase score
Camera system with parallax


With Rex Engine, you won't just make a platformer -- you'll make a platformer that feels tight, responsive, and classic.