What is the difference between OB and KC?

OB is the OSKO Balance you top up through the TL balance section of the site, and most premiums and special items are sold only for OB. You can farm KC in game or convert OB in the PUS: 700 OB = 23,500 KC makes the largest pack the best value.

OB → KC conversion
OBKC
50 500
90 1,000
120 1,500
160 2,250
210 3,000
420 11,000
550 16,000
700 23,500
Short answer

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.

Premium comparison

Skill effects on game screens with the PRUVA logo
From the PRUVA promo video · Image: OldSchoolKO
Source / rights
Image / usage information: Görsel: OldSchoolKO. · Image source ↗
OldSchoolKO premium types
BonusPlatinumGoldBronzeClan
Price 700 OB 650 OB 7,000 KC 20,000 KC
EXP bonus 100% 50% 20% 10%
Coin bonus 100% 30% 5% 0%
Drop bonus 25% 2% 1% —
NP bonus +12 +8 +2 +5
EXP lost on death (normally 5%) 3% 3% 3% 4%
Repair (RPR) discount 50% 50% 20% 0%
Extra coins from NPC sales 50% 50% 20% 0%

Gold and Platinum are only 50 OB apart, but the drop bonus jumps from 2% to 25%, so Platinum is the better pick for farming. Genie and Auto Loot need at least Gold Premium.

What is in the Starter Package?

The Starter Package costs 2,000 OB and gives you all of this in one pack:

  • Platinum Premium
  • Genie + Auto Loot
  • 5000x HP Potion and 5000x MP Potion
  • 2x Extra Inventory
  • 5x EXP Scroll
  • Trina's Piece
  • Genie Hammer
  • Redistribution Item
  • Weapon Enchant Scroll and Armor Enchant Scroll
  • Lion Scroll and NP Scroll
  • 2,100 Cash
  • VIP Key and Slave Merchant

Common PUS items

Selected PUS prices
ItemPrice
Voucher of Genie + Auto Loot (15 days) 250 OB
Character Seal Scroll (CSS) 300 OB
Voucher of Solarin (15 days) 750 OB
Nation Transfer (NTS) 3,000 KC
Name Change Scroll 3,000 KC
Redistribution Item 2,500 KC
Trina's Piece 2,800 KC
Shadow Piece 3,700 KC
Premium Potion HP (1000x) 1,750 KC

Is GB trading allowed, and how do you farm KC?

Gold Bars are not banned between players. When you sell for Knight Cash at a merchant, there is a minimum of 1,000 KC and a 3% KC tax.

You can also collect KC in game: since 23 June Atross and Riote drop 100, 350 or 700 KC. An EXP Jar, made at the Hemes NPC by turning 100M EXP into a jar at level 70, can also give 100 or 350 KC.

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