Why would a skin be cheaper somewhere else than on Steam?

Third-party marketplaces set their own prices independently and often undercut Steam to attract buyers - the gap shown here is the actual, current spread between the two, not a stale estimate.

Rust 皮肤优惠：比 Steam 更便宜

4,007 款皮肤：在第 3 方市场买入并即时卖给 Steam 市场最高买单，扣除 Steam 约 15% 销售手续费后仍有利润，价差最大的在前。

市场概览：实时挂单与最佳 100 套利率

按各市场的套利率排序，最佳在前。圆点：该市场最佳 100 个挂单（不足时为全部挂单）的中位数，价格对比的是在扣除 Steam 约 15% 手续费后即时卖给 Steam 最高买单——绿色表示其最佳倒卖候选确实有利可图。柱状：该市场当前在线的 Rust 挂单数量（约每 5 分钟刷新）。

站内出售时的卖家手续费：RustSkins 1% · CSDealsMarketplace 2% · TradeRust 2% · LISSkins 5% · DMarket 5% · RustTM 5% · ManncoStore 5% · Waxpeer 6% · Skinport 8%。交易网站（CS.Trade、Tradeit.GG、Swap.GG、Loot.Farm）的价格显示为扣除各网站充值奖励后的实际现金成本。

皮肤	买入		卖出	利润（扣除 Steam 手续费后）
Blacksmith's Pick Axe 武器	Skinport $3.78	→	Steam $5.47 $6.29 扣费前	+44.7% $1.69	买入 → 卖出 →
HellCore Bucket Helmet 服装	Skinport $0.86	→	Steam $1.24 $1.43 扣费前	+44.2% $0.38	买入 → 卖出 →
Sheet Metal Barricade 可部署物	RustSkins $0.43	→	Steam $0.57 $0.65 扣费前	+32.6% $0.14	买入 → 卖出 →
Ghost Halloween SMG 武器	Skinport $1.23	→	Steam $1.60 $1.84 扣费前	+30.1% $0.37	买入 → 卖出 →
Totem Bow 武器	Waxpeer $0.74	→	Steam $0.96 $1.10 扣费前	+29.7% $0.22	买入 → 卖出 →
Metalwork Flux Furnace 可部署物	CSTrade $1.50	→	Steam $1.94 $2.23 扣费前	+29.3% $0.44	买入 → 卖出 →
Slime Monster Hoodie 服装	LISSkins $0.44	→	Steam $0.56 $0.64 扣费前	+27.3% $0.12	买入 → 卖出 →
Hellion DBS 武器	DMarket $0.59	→	Steam $0.75 $0.86 扣费前	+27.1% $0.16	买入 → 卖出 →
Arctic Skull MP5 武器	Skinport $1.60	→	Steam $2.03 $2.34 扣费前	+26.9% $0.43	买入 → 卖出 →
Nuke DBS 武器	LISSkins $0.67	→	Steam $0.85 $0.98 扣费前	+26.9% $0.18	买入 → 卖出 →
Nightwatch SAR 武器	Skinport $3.08	→	Steam $3.90 $4.48 扣费前	+26.6% $0.82	买入 → 卖出 →
Black Diamond Kilt 服装	CSTrade $3.73	→	Steam $4.70 $5.40 扣费前	+26.0% $0.97	买入 → 卖出 →
Furnace of souls	Skinport $0.82	→	Steam $1.03 $1.18 扣费前	+25.6% $0.21	买入 → 卖出 →
Chocolate Hunter Bow 武器	DMarket $0.75	→	Steam $0.94 $1.08 扣费前	+25.3% $0.19	买入 → 卖出 →
Rooster Poncho 服装	Skinport $0.44	→	Steam $0.55 $0.63 扣费前	+25.0% $0.11	买入 → 卖出 →
Gear Mechanism Electric Furnace 可部署物	Skinport $4.35	→	Steam $5.39 $6.20 扣费前	+23.9% $1.04	买入 → 卖出 →
Apotheosis of War Chestplate	Skinport $0.67	→	Steam $0.83 $0.95 扣费前	+23.9% $0.16	买入 → 卖出 →
Star Python 武器	LISSkins $0.56	→	Steam $0.69 $0.79 扣费前	+23.2% $0.13	买入 → 卖出 →
Valkyrie SAP	Skinport $1.88	→	Steam $2.31 $2.66 扣费前	+22.9% $0.43	买入 → 卖出 →
Blackout SAR 武器	CSDealsMarketplace $2.00	→	Steam $2.45 $2.82 扣费前	+22.5% $0.45	买入 → 卖出 →
Electric Furnace from Hell	Skinport $2.05	→	Steam $2.51 $2.89 扣费前	+22.4% $0.46	买入 → 卖出 →
Christmas Locker 可部署物	LISSkins $3.21	→	Steam $3.93 $4.52 扣费前	+22.4% $0.72	买入 → 卖出 →
Wild Spirit AR 武器	CSDealsMarketplace $0.58	→	Steam $0.71 $0.82 扣费前	+22.4% $0.13	买入 → 卖出 →
Paititi Bone Knife 武器	CSDealsMarketplace $3.47	→	Steam $4.24 $4.88 扣费前	+22.2% $0.77	买入 → 卖出 →
Ninja AR 武器	Skinport $0.91	→	Steam $1.11 $1.28 扣费前	+22.0% $0.20	买入 → 卖出 →
Black Gold Roadsign Gloves 服装	Skinport $2.31	→	Steam $2.81 $3.23 扣费前	+21.6% $0.50	买入 → 卖出 →
Power Door 可部署物	CSDealsMarketplace $0.37	→	Steam $0.45 $0.52 扣费前	+21.6% $0.08	买入 → 卖出 →
Super Happy Bucket 服装	DMarket $0.89	→	Steam $1.08 $1.24 扣费前	+21.3% $0.19	买入 → 卖出 →
Geartooth DBS 武器	CSDealsMarketplace $0.99	→	Steam $1.20 $1.38 扣费前	+21.2% $0.21	买入 → 卖出 →
No Mercy Crossbow 武器	CSTrade $1.19	→	Steam $1.44 $1.66 扣费前	+21.0% $0.25	买入 → 卖出 →