All the hallmarks of a great port that goes beyond what you'd expect. * Stable * Vulkan renderer * Highly customisable input options * Improved mouse handling, no more strangeness when aiming up and down * Perfect use of voxels to improve some details * Free expansion packs (The good ones, from a time when expansion were expansions, not bits of the main game cut out and sold to you for extra) * Leveraged the original source, so enemies, weapons, physics all feel correct * Campaign co-op * Deathmatch * Further graphical improvements (Anti aliasing, Ambient Occlusion, widescreen support, FPS counter) ..and finally, although the game includes this huge array of improvements and more, they're *all* optional. Don't like something for any reason? Turn it off. It's hard to criticise as it's clearly the product of excellent decision making and execution. If only this type of quality was the rule rather than the exception.
