Damascus Steel (internal id aq_damascus_prisma) is Valve’s patina take on the tactical knife: cool-toned steel, green-brown aging, and stacked forge lines instead of a big graphic. It’s mythical rarity—metal craft for players who want texture in first- and third-person without loud colors.

Quick specs

• Weapon: Knife (tactical)
• Rarity: Mythical
• Finish: Patina
• Float: 0.00–0.50

The item line nods to two carbon steels forged together; the flavor line plays on an “unbreakable blade for an unbreakable will.” Patina shows strongest on the spine, guard, and edge under different lighting—float decides how clean the steel stays versus how much edge highlight survives.

Release & source

March 13, 2019 shipped with the game update—the same window as the Prism Case and Valve’s Seeing the Light blog post. Treat that date as your anchor if you’re completing the Chroma knife set from that era.

Designer: Official Valve, Chroma knife series—not a Workshop submission. Identity is forge layering and patina, aligned with Prism’s look, not a standalone art story.

Drop: Rare knife from the Prism Case. Opening the case or buying on secondary markets (C5GAME, Steam Community Market) both funnel through that box.

What to check in inspect

Thumbnails lie. In-server inspect matters:

• Mid-blade forge lines—do they stay continuous or break awkwardly?
• Guard corners—patina depth you expect vs. what you see
• Wear tier—from Factory New to Battle-Scarred, watch how patina eats steel cleanliness and edge shine

Shopping guide conclusion

Worth it if you want low-key metal on the default knife, you’re filling Prism/Chroma official knives, or you like patina that reads better in motion than in icons. Skip or go cheap BS if you need a loud flex skin—this one whispers.

On C5GAME or Steam, lock your float band first, then compare listings in the same band. Mythical knife pricing swings with wear; a “good” FN patina pattern can cost more than a messy one at the same float.

Expert mutterings

Patina knives reward patient buyers: same float, different pattern seed, totally different guard read. I’d rather take a slightly higher float with clean mid-blade layering than chase 0.01 FN with chopped forge lines. Prism Case knives aren’t infinite supply psychology forever, but Damascus stays a sensible “era piece”—not hype chase, just solid metal taste. Open if you enjoy the gamble; buy the tier you inspected if you don’t.