Serious Sam 3: BFE / Achievements
01Co-op Master
Complete the campaign in cooperative with at least 2 players.
- Unlocked by
- 8.4%
- Rarity
- Rare
- Hidden achievement
- No
Data from Steam — Steam Web API Terms of Use. Last updated .
Serious Sam 3: BFE / Achievements
Complete the campaign in cooperative with at least 2 players.
Data from Steam — Steam Web API Terms of Use. Last updated .