Steam Achievements
- 10 Kills - Kill 10 creatures
- 100 Kills - Kill 100 creatures
- 1000 Kills - Kill 1000 creatures
- 10000 Kills - Kill 10000 creatures
- 15000 Kills - Kill 15000 creatures
- 5000 Kills - Kill 5000 creatures
- All Weapons - Purchase all weapons in the campaign
- Bonus 10 - Bonus multiplier reached 10
- Bonus 100 - Bonus multiplier reached 100
- Bonus 200 - Bonus multiplier reached 200
- Bonus 50 - Bonus multiplier reached 50
- Easy - Finish all missions in easy
- Hard - Finish all missions in hard
- Hospital - Finish the map Hospital
- Insane - Finish all missions in insane
- Laboratory - Finish the map Laboratory
- Laboratory - Secret Entrance - Finish the map Laboratory - Secret Entrance
- Mall - Finish the map Mall
- Moneypacks - Pickup 100 moneypacks
- News - Find one newspaper
- News 12 - Find 12 different newspapers
- News 21 - Find all newspapers
- News 5 - Find five different newspapers
- Normal - Finish all missions in normal
- Police Station - Finish the map Police Station
- Sewer - Finish the map Sewer
- Still Alive! - Finish a mission in difficulty hard without being killed
- Suburb - Finish the map Suburb
- Time Limit - Finish a mission within time limit
