Loading
Description Welcome to The Sirian Star, a custom made campaign for Serious Sam 4. It tries to bring back the classic Serious Sam gameplay where you explore nice looking locations, become more and more powerful by collecting big guns and mow down lots of en
- By
- Struppi
- Subscribers
- 2,756
- Favourites
- 203
- Rating
- 3.8/5
- Last updated
- 24 May 2026
- Tags
- MapsSingle PlayerCooperativeCustom Campaign
- Size
- 1,746MB
- On the Workshop
- On the Workshop ↗