OldSchoolKO event schedule: what time do BDW, Collection Race and Bifrost start?
On OldSchoolKO PRUVA, BDW starts every day at 01:00, 09:00 and 17:00, Collection Race PK at 18:00 and 20:00, and Bifrost at 22:30. All times are Turkey time (UTC+3).
Knight Online PvP
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OldSchoolKO PRUVA server info: V1098 MYKO, hard EXP and what is turned off
OldSchoolKO PRUVA is a hard-rate V1098 MYKO server that opened on 5 June 2026. There is no talisman, DKS, tattoo, wing or perk system, and EXP, items and coins are tuned to be slow to earn.
OldSchoolKO download: x64 client install, system requirements, Discord and forum
You install OldSchoolKO with the 545 MB x64 client from the site's download page and keep it current through the launcher; a free account on the site is all you need to play.
OldSchoolKO boss locations and respawn times: Eslant, Colony Zone and Isiloon drops
On OldSchoolKO the Eslant bosses respawn every 4 to 8 hours and most Colony Zone bosses every 3 to 6 hours. The strongest accessory boss is Isiloon in Hell Abyss.
OldSchoolKO PUS prices and premium types: OB, KC and is GB trading allowed?
OldSchoolKO's PUS uses 2 currencies: OSKO Balance (OB) and Knight Cash (KC). Platinum Premium is 700 OB, Gold 650 OB and Bronze 7,000 KC, and GB trading has been allowed since PRUVA's first day.
OldSchoolKO upgrade rates: BUS, Trina's Piece, REB and accessory tables
On OldSchoolKO a BUS has a 1% chance from +7 to +8, or 2% with Trina's Piece. REB reverse steps are 20% each, 40% with Shadow Piece; +9 on normal items and reverse +6 are closed.