this requires serious sam TSE 1.07, which you can just type it in Serious Sam: The Second Encounter Files page 4

found 208 results in Serious Sam: The Second Encounter all files
XMR1 DM Map Pack
 in maps 770 downloads | 2.51 MB
SFW Part 11.5
 in maps 617 downloads | 10.79 MB
Alien Base
 in maps 540 downloads | 1.23 MB
Shotty Complex & Flare SE
 in maps 573 downloads | 5.34 MB
Shotty Trouble
 in maps 546 downloads | 145.3 KB
No PowerUps Map Pack
 in maps 611 downloads | 6.46 MB
Crystal Gate
 in maps 761 downloads | 4.65 MB
Vedran
 in maps 403 downloads | 452.61 KB
Medieval Rage
 in maps 422 downloads | 115.18 KB
Hole (HD version)
 in maps 380 downloads | 496.6 KB
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