Everything here comes from the item tooltips on the mob and exchange pages, with the class taken from the "Rogue Armor" line. Archers and assassins share the same armor: nothing in the tooltip splits them. Requirements are DEX and HEA (Health).

Rogue sets: total defense compared

Rogue Armor sets, total Defense by + level
SetItem GradeTotal DefenseChest piece requiresMax Durability (lowest +)
Rogue Shirt set low Class +3: 73 · +4: 88 +3: HEA 49 4,800
Rogue Plate middle Class no full set +1: HEA 70 5,600
Rogue Full Plate middle Class +1: 209 +1: DEX 144, HEA 82 7,000
Rogue Chitin middle Class +1: 299 · +3: 329 +1: DEX 160, HEA 90 8,750
Rogue Chitin Shell high Class +1: 334 · +3: 364 · +5: 394 +1: DEX 176, HEA 94 10,937
Mythril (Pidama) high Class +1: 334 +1: DEX 176, HEA 94 10,937

Rogue Full Plate (+1) totals 209 and Rogue Chitin (+1) 299, a 90 point gap. Rogue Chitin (+3) at 329 is only 5 short of Rogue Chitin Shell (+1) at 334. Rogue sets have less defense than the warrior sets of the same name but weigh less: the Rogue Chitin Shell pauldron is 12.60 against 18.00 for the warrior one.

Rogue Chitin Shell's +3/+5 pieces and Mythril's per-piece table have their own guides. The other four sets are below.

Rogue Shirt set (+3, +4, +5)

Rogue Shirt, Pads, Cap, Gloves, Shoes (low Class)
PieceDefense +3Defense +4Defense +5Stat requirement (+3 → +5)
Rogue Cap 14 17 20 HEA 45
Rogue Shirt 22 26 30 HEA 49
Rogue Pads 19 23 27 HEA 47
Rogue Gloves 9 11 13 HEA 41
Rogue Shoes 9 11 — HEA 43
Set total 73 88 — —

This set only asks for HEA, no DEX, and the requirement doesn't move with the + level. Every piece has Health Bonus: 4 at +3, 6 at +4, 8 at +5. There's no Rogue Shoes (+5) on the site, so no +5 total.

Rogue Plate (+1, +2, +5)

Rogue Plate, pieces listed on the site (middle Class)
PieceDefense +1Defense +2Defense +5Stat requirement (+1 → +5)
Rogue Plate Armor Pauldron 46 50 62 HEA 70
Rogue Plate Boots 18 — — HEA 64

Only the Pauldron and Boots of Rogue Plate show up, and they only ask for HEA.

Rogue Full Plate (+1)

Rogue Full Plate Armor set (middle Class)
PieceDefense +1Stat requirement (+1)
Rogue Full Plate Armor Helmet 39 DEX 136, HEA 78
Rogue Full Plate Armor Pauldron 66 DEX 144, HEA 82
Rogue Full Plate Armor Pads 52 DEX 140, HEA 80
Rogue Full Plate Armor Gauntlet 26 DEX 128, HEA 74
Rogue Full Plate Armor Boots 26 DEX 132, HEA 76
Set total 209 —

Like the warrior set there's a second +1 version with the same defense and requirements plus a bonus against one weapon type per piece (Pauldron Club 5, Pads Ax 5, Helmet Dagger 3, Gauntlet Sword 5, Boots Spear 3). The Rare Rogue Full Plate Armor Helmet (+6) has 52 defense, Dagger 25, DEX 146, HEA 78.

Rogue Chitin (+1, +3)

Rogue Chitin set (middle Class)
PieceDefense +1Defense +3Stat requirement (+1 → +3)
Rogue Chitin Helmet 56 62 DEX 152 → 156, HEA 86
Rogue Chitin Armor Pauldron 94 102 DEX 160 → 164, HEA 90
Rogue Chitin Armor Pads 75 83 DEX 156 → 160, HEA 88
Rogue Chitin Gauntlets 37 41 DEX 144 → 148, HEA 82
Rogue Chitin Boots 37 41 DEX 148 → 152, HEA 84
Set total 299 329 —

Two + levels add 4 to the DEX requirement and leave HEA alone. There's no Rogue Chitin (+5) on the site.

Where rogue sets drop

Where each set drops
SetMob source (mob pages)Exchange box, rate shown on the site
Rogue Shirt set 70 mob records between level 1 and 47: Worm, Bandicoot, Kecoon, Bulcan, Gavolt, Werewolf, Lycan, Shadow Seeker, Watcher —
Rogue Plate 8 records, level 43–100: Machirodus (654), Laird (1202), Konga (1300), Lard Orc (1673), Half Troll Curandero (9066), Flame Rock (3851) —
Rogue Full Plate 23 records: Lamia (60), Dragon Tooth Soldier (62), Dragon Tooth Knight (65), Dragon Tooth Commander (69), Lamiros (70), Lamentation (80), Princess (90); the extra-defense version from 8804–8807 (level 12). Helmet (+6): [Shackled Lord] Fluwiton (9512) +1: Abyss Gem 1%
Rogue Chitin +3 only: 37 records, level 30–140 (Duke, Bach, Bishop, Harpy, Troll, Snake Queen, Troll King, Talos…) +1: Abyss Gem 0.25%, Random Item Exchange Gem 0.41%, Ornament 0.169%–0.203%; +3: Fragment of Arrogance 0.035%, Fragment of Gluttony 0.036%, Fragment of Rage 0.036%, Black Gem 0.06%, Green Gem 0.06%
Rogue Chitin Shell +1 only: 51 records, level 30–165 (Volcanic Rock, Ultima, Titan, Balrog, Samma, Lesath…) +1: Dark Fragment of Wrath 0.003%, Dark Fragment of Sloth 0.002%, Dark Fragment of Lust 0.038%, Blue Gem 0.057%–0.061%, Red Gem 0.057%–0.061%, Yellow Gem 0.057%–0.061%, Silvery Gem 0.062%–0.065%, Random Item Exchange Gem 0.492%, Ornament 0.338% (no Pads); +3: Fragment of Avarice 0.032% (Pauldron, Pads only), Fragment of Jealousy 0.02%–0.03% (no Pauldron), Fragment of Lechery 0.028%, Fragment of Sloth 0.035%; +5: Dark Fragment of Pride 0.011%, Dark Fragment of Gluttony 0.011%, Dark Fragment of Envy 0.011%, Dark Fragment of Greed 0.011%
Mythril Pidama (9537, level 70) +1: Dark Fragment of Envy 0.001% (no Pads), Dark Fragment of Greed 0.001% (no Pads)

The exchange box percentages don't add up to 100%, so read them as relative odds. Mob pages list no drop rate and no spawn location at all; the site only shows which mob's list an item is on. Ornament = the Golden Star / Red Bow / Tinsel Ornament box.

FAQ

How much DEX does rogue armor need?
Rogue Full Plate pauldron DEX 144, Rogue Chitin (+1) pauldron DEX 160, Rogue Chitin Shell and Mythril (+1) pauldron DEX 176. The low-level Rogue Shirt set needs no DEX at all.
Do archers and assassins wear the same armor?
The tooltip just says "Rogue Armor" with no archer or assassin split. The site doesn't list separate armor for the two.
Mythril or Rogue Chitin Shell?
At +1 both give 334 defense with the same DEX/HEA requirement. Rogue Chitin Shell also appears at +3 and +5 on the exchange page; Mythril is +1 only.

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