If you are having an error while opening the client today - please follow the steps:

1. Go to %appdata%/Kasteria/Kasteria_v3.0
2. Copy lootconfig.otml, config.otml, minimap.otmm and hotkeys_1.otml
3. Remove Kasteria_v3.0 directory
4. Open client again
5. Close the client
6. Paste previously copied configs into Kasteria_v3.0 directory

Voila, client supposed to be open without any issues!
Legacy world starts in:
10 February 2026
Character information A
Name:Gearbox
Gender:male
Profession:Knight
Level:21
Residence:Carlin
Last Login:19 February 2026
Account Status:Free Account
Created:11 February 2026
Last experience
DateExperience
18/02 7:00 - 19/02 7:00This player has lost -2,222 experience this day.
17/02 7:00 - 18/02 7:00This player has not gained any experience this day.
16/02 7:00 - 17/02 7:00This player has gained 19,394 experience this day.
15/02 7:00 - 16/02 7:00This player has not gained any experience this day.
14/02 7:00 - 15/02 7:00This player has gained 3,313 experience this day.
13/02 7:00 - 14/02 7:00This player has gained 88,470 experience this day.
12/02 7:00 - 13/02 7:00This player has gained 14,870 experience this day.
Latest deaths
18 Feb 2026, 19:57killed at level 22 by a cyclops
14 Feb 2026, 11:05killed at level 21 by a cyclops and Krco
13 Feb 2026, 11:13killed at level 21 by Krol Artur
13 Feb 2026, 09:45killed at level 15 by a valkyrie
13 Feb 2026, 00:56killed at level 12 by a ghoul

Account characters
NameInformationStatus
1. Gearbox (currently viewing)21 KnightOnline
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