In a long gone year 2002, a great game was made, called Crimsonland.

You are playing as a man, which alone survives against a horde of monsters, finding weapons, ammo and different items along the fight.
Unfortunately the end is only one – death. It only depends how long can you manage to survive.

Crimsonland was first made free (last freeware version was 1.40), and later became fully paid game (1.9+).

There are different old versions scattered on the net. Here are 3 free versions I could find:

crimsonland_v1.4.0.zip
crimsonland_v1.3.0.zip
crimsonland_v1.0.2.zip

All of them run fine even on modern systems and in x64 operating systems.

It’s a great game you can enjoy even during a lunch break at work.

P.S. There is a rumor, that in version 1.2.4, there was an interesting new perk, called Vampirism, but unfortunately I couldn’t find that version anywhere. If you have it, please share with me! Thanks!