| 351 | Soviet Champagne drink | veteran | 0.1 kg | — | — |
| 352 | Soulreaper other | master | — | — | — |
| 353 | Soul Collector other | master | — | — | — |
| 354 | Sotnik other | master | — | — | — |
| 355 | Solyanka food | master | 0.1 kg | — | — |
| 356 | Solid Metal misc | stalker | 0.1 kg | 2,984 rubles | — |
| 357 | SOK-94 sniper rifle | stalker | 4 kg | — | 100% |
| 358 | Snowshoe other | veteran | — | — | — |
| 359 | Snowdrop other | veteran | — | — | — |
| 360 | Snowdrift Camouflage other | newbie | — | — | — |
| 361 | Snowdrift Camouflage other | newbie | — | — | — |
| 362 | Snares other arts | default | 0.3 kg | 30,800 rubles | — |
| 363 | Snake Eye biochemical | default | 0.2 kg | 28,700 rubles | — |
| 364 | Snail biochemical | default | 0.3 kg | 9,300 rubles | — |
| 365 | SN-2u Leglet device | default | 2.2 kg | — | 100% |
| 366 | SN-2 Leg device | default | 2.8 kg | — | 100% |
| 367 | SN-1u Mini-Pancake device | default | 2.5 kg | — | 100% |
| 368 | SN-1 Pancake device | default | 3 kg | — | 100% |
| 369 | SMG-91 Magazine mag | default | 0.128 kg | — | — |
| 370 | SMG Nut submachine gun | veteran | 1.9 kg | — | 100% |
| 371 | Smesson pistol | veteran | 1.1 kg | — | 100% |
| 372 | Smell of Napalm other | master | — | — | — |
| 373 | SMC Container containers | master | 4.8 kg | — | — |
| 374 | Small Tank of Combustible Mixture bullet | default | 0.75 kg | — | — |
| 375 | Small Key Holder other | veteran | 0.05 kg | — | — |
| 376 | Small Artifact Fragment misc | default | 0.2 kg | 250 rubles | — |
| 377 | Sledgehammer Part #4 misc | stalker | — | — | — |
| 378 | Sledgehammer Part #3 misc | veteran | — | — | — |
| 379 | Sledgehammer Part #2 misc | master | — | — | — |
| 380 | Sledgehammer Part #1 misc | legend | — | — | — |
| 381 | Sledgehammer melee | legend | 5.4 kg | — | — |
| 382 | Slavs Battle Axe melee | veteran | 1.1 kg | — | — |
| 383 | Skyline MBC barrel | master | 0.019 kg | — | — |
| 384 | SKT-40 sniper rifle | newbie | 3.8 kg | — | 100% |
| 385 | SKS-T sniper rifle | stalker | 5.01 kg | — | 100% |
| 386 | SKS TriRail System forend | newbie | 0.11 kg | — | — |
| 387 | SKS Bracket—Dovetail Joint forend | newbie | 0.15 kg | — | — |
| 388 | SKS sniper rifle | newbie | 3.75 kg | — | 100% |
| 389 | Sirius G-12 Exosuit other | master | — | — | — |
| 390 | Sinner other | master | — | — | — |
| 391 | Sink other | default | — | — | — |
| 392 | Sin other | master | — | — | — |
| 393 | Sin other | master | — | — | — |
| 394 | Silver Stalker Token accessory | default | — | — | — |
| 395 | Silver Bandit Token accessory | default | — | — | — |
| 396 | Silencer for OTs-14 Groza barrel | veteran | 0.48 kg | — | — |
| 397 | Sight Mount for M16A2 forend | newbie | 0.05 kg | — | — |
| 398 | SIG SG 550 Sniper sniper rifle | veteran | 4.51 kg | — | 100% |
| 399 | SIG SG 550 assault rifle | veteran | 4.51 kg | — | 100% |
| 400 | Sig Sauer SRD762Ti barrel | veteran | 0.56 kg | — | — |