It takes forever to cycle through all the ads & stuff so for completeness, I'll list them below here. The list ins't complete as they are 'counting down' each day and are only up to 71 so far:
100 - Archon: The Light and the Dark (NES, PC, C64)
99 - Rayman 2: The Great Escape (dreamcast)
98 - Quake 2 (N64, PC etc)
97 - Silent Hill 2 (PS2, XBox, PC)
96 - Wave Race 64 (N64)
95 - Bionic Commando (NES, PC, GB)
94 - Nights into Dreams (SAT)
93 - Ultima VII: The Black Gate (PC, SNES)
92 - Wipeout 3 (PSX)
91 - Pilot Wings (SNES)
90 - Okami (PS2)
89 - Alone in the Dark (PC, PSX, SAT etc)
88 - Star Wars (Atari)
87 - Advance Wars (GBA)
86 - Perfect Dark (N64)
85 - Mafia (PS2, PC Xbox)
84 - Manic Mansion: Day of the Tentacle (PC, MAC)
83 - World of Warcraft (MAC, PC)
82 - Syndicate (PC, SNES etc)
81 - Space Invaders (Atari)
80 - Ninja Gaiden Black (Xbox)
79 - Secret of Mana (SNES)
78 - Legend of Zelda: Link's Awakening (GB)
77 - Starfox (SNES)
76 - Final Fantasy VII (PC, PS2)
75 - Goldeneye (N64)
74 - Sam & Max Hit The Road (MAC, PC)
73 - Resident Evil (PSX, PC)
72 - Mechwarrior 2 (PC, SAT etc)
71 - Planescape: Torment (PC)
70 - Techmo Bowl (GB, NES)
69 - Metal Gear 2: Sons of Liberty (PS2)
68 - Prince of Persia: The Sands of Time (PS2, PC, XBox, GCN)
67 - Mega Man 2 (NES)
66 - Burnout 3:Takedown (PS2, Xbox)
65 - Thief II: The Metal Age (PC)
64 - Total Annihilation (PC, MAC)
63 - Virtua Fighter 4: Evolution (PS2, ARC)
62 - Wolfenstein 3-D (PC, SNES etc)
61 - Phantasy Star IV (PC, GEN)
60 - Prince of Persia (PC, NES etc)
59 - Command and Conquer: Red Alert (PSX, PC)
58 - Mike Tyson's Punch-out!! (NES)
57 - ICO (PS2)
56 - NHL '94 (PC, SNES etc)
55 - Final Fantasy II (SNES, PSX etc)
54 - Contra (NES, GB etc)
53 - Rome:Total War (PC)
52 - Dune II: The Building of a Dynasty (PC)
51 - Sonic the Hedgehog (GEN, GBA, SGG)