| 2001 | Conan Exiles Enhanced - The Imperial East Pack | 760730 | DLC | — | Catalogue |
| 2002 | Conan Exiles Enhanced - The Savage Frontier Pack | 919390 | DLC | — | Catalogue |
| 2003 | Conan Exiles Enhanced - Treasures of Turan Pack | 1040930 | DLC | — | Catalogue |
| 2004 | Concerto on White: Cajon Story - Berry Melody Music Pack | 4499070 | DLC | — | Catalogue |
| 2005 | Concerto on White: Cajon Story - Livemania Music Pack | 4499050 | DLC | — | Catalogue |
| 2006 | Concerto on White: Cajon Story - Luna Music Pack | 4499060 | DLC | — | Catalogue |
| 2007 | Concerto on White: Cajon Story - Marimbeira Music Pack | 4499080 | DLC | — | Catalogue |
| 2008 | Concerto on White: Cajon Story - Touhou Project Music Pack | 4001970 | DLC | — | Catalogue |
| 2009 | Conductor: Content Pack 1 | 1575490 | DLC | — | Catalogue |
| 2010 | Connected Hearts: Cost of Beauty DLC | 2740240 | DLC | — | Catalogue |
| 2011 | Connected Hearts: Hour of the Witch DLC | 3348230 | DLC | — | Catalogue |
| 2012 | Connected Hearts: The Musketeers Saga DLC | 2295640 | DLC | — | Catalogue |
| 2013 | Conquest Emperor - H DLC(free) | 2076370 | DLC | — | Catalogue |
| 2014 | Conquest Emperor Art DLC | 2133470 | DLC | — | Catalogue |
| 2015 | Construction Simulator - Airfield Expansion | 2295780 | DLC | — | Catalogue |
| 2016 | Construction Simulator - Car & Bobblehead Pack | 1944340 | DLC | — | Catalogue |
| 2017 | Construction Simulator - DAF & MEILLER Pack | 2657410 | DLC | — | Catalogue |
| 2018 | Construction Simulator - Dynapac Pack | 2657400 | DLC | — | Catalogue |
| 2019 | Construction Simulator - JCB Pack | 2291420 | DLC | — | Catalogue |
| 2020 | Construction Simulator - Kramer Pack | 2203420 | DLC | — | Catalogue |
| 2021 | Construction Simulator - Liebherr Pack | 2657380 | DLC | — | Catalogue |
| 2022 | Construction Simulator - SANY Pack | 2295810 | DLC | — | Catalogue |
| 2023 | Construction Simulator - Spaceport Expansion | 2295820 | DLC | — | Catalogue |
| 2024 | Construction Simulator - Stadium Expansion | 2657390 | DLC | — | Catalogue |
| 2025 | Construction Simulator - Year 1 Season Pass | 2323000 | DLC | — | Catalogue |
| 2026 | Construction Simulator - Year 1 Season Pass Helmet | 2322990 | DLC | — | Catalogue |
| 2027 | Construction Simulator - Year 2 Season Pass | 2666240 | DLC | — | Catalogue |
| 2028 | Construction Simulator - Year 2 Season Pass Pickup Truck | 2657420 | DLC | — | Catalogue |
| 2029 | Construction Truck Simulator - Overtime Expansion Pack | 909250 | DLC | — | Catalogue |
| 2030 | Content Pack - Crusader Kings II: Conclave | 394321 | DLC | — | Catalogue |
| 2031 | Content Pack - Crusader Kings II: Horse Lords | 354331 | DLC | — | Catalogue |
| 2032 | Content Pack - Crusader Kings II: The Reaper's Due | 449981 | DLC | — | Catalogue |
| 2033 | Content Pack - Europa Universalis IV: Common Sense | 373150 | DLC | — | Catalogue |
| 2034 | Content Pack - Europa Universalis IV: Cradle of Civilization | 721341 | DLC | — | Catalogue |
| 2035 | Content Pack - Europa Universalis IV: Dharma | 827250 | DLC | — | Catalogue |
| 2036 | Content Pack - Europa Universalis IV: El Dorado | 338161 | DLC | — | Catalogue |
| 2037 | Content Pack - Europa Universalis IV: Emperor | 1264340 | DLC | — | Catalogue |
| 2038 | Content Pack - Europa Universalis IV: Mandate of Heaven | 538021 | DLC | — | Catalogue |
| 2039 | Content Pack - Europa Universalis IV: Mare Nostrum | 436121 | DLC | — | Catalogue |
| 2040 | Content Pack - Europa Universalis IV: Rights of Man | 486571 | DLC | — | Catalogue |
| 2041 | Content Pack - Europa Universalis IV: The Cossacks | 373380 | DLC | — | Catalogue |
| 2042 | Context - Dress Up Content Pack | 1194070 | DLC | — | Catalogue |
| 2043 | Context - Nude Male Wrestlers Content Pack | 1204400 | DLC | — | Catalogue |
| 2044 | Context - Strength Training Content Pack | 1207330 | DLC | — | Catalogue |
| 2045 | ContractVille - Japanese Furniture Pack | 4075310 | DLC | — | Catalogue |
| 2046 | ContractVille - Medieval Furniture Pack | 3969000 | DLC | — | Catalogue |
| 2047 | ContractVille - Sci-Fi Furniture Pack | 4207210 | DLC | — | Catalogue |
| 2048 | ContractVille - Valentine's Day Furniture Pack | 4376710 | DLC | — | Catalogue |
| 2049 | Contractors Showdown : ExfilZone - Anna's AK series AK74N Tactical Supply Pack | 3988290 | DLC | — | Catalogue |
| 2050 | Contractors Showdown : ExfilZone - Anna's AR series M4A1 Tactical Supply Pack | 3988260 | DLC | — | Catalogue |
| 2051 | Contractors Showdown : ExfilZone - Prismatic Warfare Spray Pack | 3988330 | DLC | — | Catalogue |
| 2052 | Contractors Showdown : ExfilZone - Radiant Tactics Spray Pack | 3988340 | DLC | — | Catalogue |
| 2053 | Contractors Showdown : ExfilZone - Stealth Ops Spray Pack | 3988320 | DLC | — | Catalogue |
| 2054 | Contraption Maker: Battling Cards - Parts & Puzzles Expansion Pack | 786010 | DLC | — | Catalogue |
| 2055 | Contraption Maker: Wonderstructs - Part & Puzzle Expansion Pack | 745580 | DLC | — | Catalogue |
| 2056 | Cooking Craze - Starter Pack | 2709720 | DLC | — | Catalogue |
| 2057 | Cooking Live - Beginner’s Pack | 2231760 | DLC | — | Catalogue |
| 2058 | Cooking Live - Blogger’s Pack | 2236851 | DLC | — | Catalogue |
| 2059 | Cooking Live - Celebrity’s Pack | 2236854 | DLC | — | Catalogue |
| 2060 | Cooking Live - Expert’s Pack | 2236852 | DLC | — | Catalogue |
| 2061 | Cooking Live - Geek Girl (Free DLC) | 2437970 | DLC | — | Catalogue |
| 2062 | Cooking Live - Star’s Pack | 2236853 | DLC | — | Catalogue |
| 2063 | Cooking Live - Subscriber’s Pack | 2236850 | DLC | — | Catalogue |
| 2064 | Cooking Simulator - Chaos Tool FREE DLC | 1357180 | DLC | — | Catalogue |
| 2065 | Core Defense – Mastery Expansion | 1563040 | DLC | — | Catalogue |
| 2066 | Coridden - Supporter Pack | 3623610 | DLC | — | Catalogue |
| 2067 | Cosmic Cube - DLC Free | 1756400 | DLC | — | Catalogue |
| 2068 | Cosmic Flow - Supporter Badge DLC | 1275020 | DLC | — | Catalogue |
| 2069 | Cosmo Knight Zion - Special Mini Comic - DLC | 4072150 | DLC | — | Catalogue |
| 2070 | Cosmopoly - Associate's DLC | 2094940 | DLC | — | Catalogue |
| 2071 | Cosmula - Supporter Pack | 3498350 | DLC | — | Catalogue |
| 2072 | Cossacks: Campaign Expansion | 4856 | DLC | — | Catalogue |
| 2073 | Country Desert Simulator | Addon SUV | 981510 | DLC | — | Catalogue |
| 2074 | Cozy Grove - New Neighbears DLC | 1895480 | DLC | — | Catalogue |
| 2075 | Cozy Littlequarium - Supporter Pack | 4114840 | DLC | — | Catalogue |
| 2076 | Crab God - Supporter Pack | 3016900 | DLC | — | Catalogue |
| 2077 | Cracked - Pyramid Campaign DLC | 2192760 | DLC | — | Catalogue |
| 2078 | Cracked - Temple Campaign DLC | 2192761 | DLC | — | Catalogue |
| 2079 | Cracking the Cryptic - Lines Variety Pack | 2627750 | DLC | — | Catalogue |
| 2080 | Crash Dive 2 - Aleutian Islands Expansion Pack | 2519720 | DLC | — | Catalogue |
| 2081 | Crash Dive 2 - East Indies Expansion Pack | 2977910 | DLC | — | Catalogue |
| 2082 | Crawling Angels - Supporter Pack | 4706270 | DLC | — | Catalogue |
| 2083 | Crazy Machines 2 - Jewel Digger DLC | 312090 | DLC | — | Catalogue |
| 2084 | Crazy Machines 2: Anniversary DLC | 335110 | DLC | — | Catalogue |
| 2085 | Crazy Machines 2: Back to the Shop Add-On | 18440 | DLC | — | Catalogue |
| 2086 | Crazy Machines 2: Happy New Year DLC | 202452 | DLC | — | Catalogue |
| 2087 | Crazy Machines 2: Invaders From Space, 2nd Wave DLC | 242630 | DLC | — | Catalogue |
| 2088 | Crazy Machines 2: Liquid Force Add-on | 18407 | DLC | — | Catalogue |
| 2089 | Crazy Machines 2: Time Travel Add-On | 18408 | DLC | — | Catalogue |
| 2090 | Crazy Machines Elements DLC - Collision Course & Mental Activity | 206416 | DLC | — | Catalogue |
| 2091 | Crazy Machines Elements DLC - Gadget Fun & Tricky Riddles | 206415 | DLC | — | Catalogue |
| 2092 | CrazyFish Chapter 6 - Cosmetic Pack | 4429800 | DLC | — | Catalogue |
| 2093 | Creators' talks and project designs DLC (12+) | 2282240 | DLC | — | Catalogue |
| 2094 | Creature Clicker - Deluxe Pack | 631332 | DLC | — | Catalogue |
| 2095 | Creature Clicker - Starter Pack | 631330 | DLC | — | Catalogue |
| 2096 | Creature Clicker - Supporter Pack | 631331 | DLC | — | Catalogue |
| 2097 | Creature Lab - Succubus Monster Pack | 2447620 | DLC | — | Catalogue |
| 2098 | Crescent Quest - Furry Home Expansion | 2648680 | DLC | — | Catalogue |
| 2099 | Crescent Quest - Y2K Home Expansion | 2648690 | DLC | — | Catalogue |
| 2100 | Cricket 19 - Ultimate Edition DLC | 1554620 | DLC | — | Catalogue |
