This game is really bad. I've played a lot of indy games in my time, and I've got to say that this is one of the worst that I've played. Power of the enemies to the player even on the lowest difficulty is seriously lopsided, there isn't enough ammo, lack of any kind of tutorial telling you about the enemies... The graphics are great, although.
I don't know why people are complaining, this classic title is brought back to life on modern machines. Even on steam, there's no multi-player option. This game is the full game without the multi-player. People put too much priority on the multi-player. To me, there's more value in the story and in the single player version of the game. I don't need people coming in and spoiling the game play for me. There are and always will be bad players, so I opt for single player games. Like the people whining about the multi-player function not being there, it's players like him that I want to avoid.