What are some alternatives?
When comparing Metro Exodus and CSSGram, you can also consider the following products
Duke Nukem Forever - Duke Nukem Forever is an Action-Adventure, First-person Shooter, Single and Multiplayer video game developed by 3D Realms and published by 2K Games.
Filtron - Create and share your own photo filters on Mac & iPhone
Team Fortress 2 - Team Fortress 2 (TF2) is the sequel to the game that put class-based, multiplayer team warfare on...
CSSCO - VSCO Filters with CSS
Warface - Warface - is a free online shooter with diverse PVP modes, exciting PVE missions, outstanding arsenal and millions of fans around the world!
Instagram.css - Complete set of Instagram filters in pure CSS