Level 1 - Kosmonautu Station
00:28​ Secred 1
01:30​ Secred 2
04:16​ Secred 3
04:51​ Secred 4
06:24​ Secred 5
07:10​ Secred 6

Level 2 - Luna
00:57​ Secred 1
02:24​ Secred 2
02:49​ Secred 3
06:11​ Secred 4
07:04​ Secred 5
07:14​ Secred 6

Level 3 - Sewage Treatment Plant
00:18​ Secred 1
02:23​ Secred 2
05:05​ Secred 3
07:15​ Secred 4

Level 4 - Sokol Gymnasium
00:44​ Secred 1
03:44​ Secred 2
06:38​ Secred 3
07:55​ Secred 4
08:41​ Secred 5

Level 5 - Palace of Culture
00:31​ Secred 1
01:05​ Secred 2
04:16​ Secred 3
08:29​ Secred 4

Level 6 - Vysehrad Castle
01:10 Secred 1
01:20 Secred 2
04:33 Secred 3
04:55 Secred 4
05:46 Secred 5
06:11 Secred 6
06:47 Secred 7
07:37 Secred 8
07:59 Secred 9


Level 7 - Underground Stream
00:52​ Secred 1
01:28​ Secred 2
02:21​ Secred 3
04:51​ Secred 4


Level 8 - Mausoleum
00:51​ Secred 1
01:12​ Secred 2
03:45​ Secred 3
04:23​ Secred 4
06:42​ Secred 5

E2L1 Točník Castle
00:00 Secred 1
04:11 Secred 2
04:20 Secred 3
04:28 Secred 4
04:51 Secred 5
05:04 Secred 6
05:35 Secred 7
07:38 Secred 8

E2L2 Uranium Mine
00:00 Level Start
01:04 Secred 1
01:42 Secred 2
01:54 Secred 3
02:19 Secred 4
04:23 Secred 5

E2L3 Velhartice Cemetery
00:00 Level Start
00:32 Secred #1
01:57 Secred #2
03:08 Secred #3
03:52 Secred #4
06:03 Secred #5
06:53 Secred #6

E2L4 Factory Farm
00:00 Secred 1
01:09 Secred 2
02:21 Secred 3
02:55 Secred 4
04:30 Secred 5
07:37 Secred 6

E2L5 Kasperk Castle
00:00 Level Start
00:16 Secred 1
00:55 Secred 2
01:42 Secred 3
02:27 Secred 4
03:31 Secred 5
03:55 Secred 6
04:57 Secred 7
09:43 Secred 8
10:30 Secred Level Exit

E2L6 Dobrošov Fortress
00:00 Level Start
02:50 Secreds 1 & 2
05:17 Secred 3
05:44 Secred 4
06:44 Secred 5

E2L7 The Granny's Valley
00:00 Level Start
01:04 Secred 1 / Plate 1
01:40 Plate 2
01:48 Secred 2 / Plate 3
02:38 Secred 3 / Plates 4 & 5
03:38 Plates 6 & 7
05:39 Secred 4
05:54 Secred 5
06:22 Secred 6
06:51 Secred 7
07:41 Secreds 8 & 9
10:40 Plate 8

E2L8 The Degustation
https://www.youtube.com/watch?v=uGZ8Mc8JFQg

E3L1 - WAR WITH THE NEWTS
00:00 Secred 1
00:45 Secred 2
02:52 Secred 3
03:33 Secred 4
04:46 Secred 5
06:40 Secred 6

E3L2 - HOSPITAL
00:00 Level Start
01:42 Secred 1
02:10 Secred 2
06:41 Secred 3
06:56 Secred 4
07:03 Secred 5
08:14 Secred 6
08:32 Secred 7

E3L3 - ROZTYLY
00:00 Level Start
01:46 Secred 1
02:52 Secred 2
03:33 Secred 3
06:54 Secred 4
08:04 Secred 5
09:21 Secred 6

E3L4 - GEORGE OF PODIEBRAD
00:00 Level Start
00:29 Secred 1
00:49 Secred 2
02:10 Secred 4
03:16 Secred 5
04:17 Secret level exit (will open if you come later)
08:35 Secred 3 (forgot about it earlier)

E3L5 - THE INCINERATOR
00:00 Level Start
01:27 Secred 1
02:17 Secred 2
03:08 Secred 3
05:34 Secred 4
07:14 Secred 5

E3L6 - BUBNY
00:00 Level Start
00:12 Secred 1
04:58 Secred 2

E3L7 - STRAHOV STADIUM & EPILOGUE