Halfquake can be quite fustrating here and there at times, but it’s nothing impossible to beat. This one has an interesting amount of puzzles and action giving you only a certain amount of weapons and ammo depending on the section, most of the time you have no firearms. Most of the puzzles are pretty much simple as they’re mainly button hunting, while others require you to jump around. Longer puzzles are made more interesting by making it harder each time you get further on. The only enemies that you fight against are headcrabs and alien slaves which aren’t too difficult to face, except the areas where there is a horde of them.