Okay... My top 5:

Sims = 17 (Sims 1+all EPs, Sims 2+7 EPs+1 SP)

Zelda = 10 (ALttP, OoT, MM, OoS/OoA, WW, MC, ALttP/FS GBA, TP and PH)

Final Fantasy = 10 (III, IV, VII, VIII, IX, X, X-2, XI, XII, Crisis Core)

Mario main series = 7 (SMW, SMA-S, SM64, SMS, S'MW: SMA2, NSMB, SMG)

Tie: Star Ocean = 3 (FD, SE, TtEoT) Pokemon = 3 (Blue, FireRed, Diamond)

<3 Nintendo Series.

resident evil 15

pokemon 27

mario main series 5

Final Fantasy 10

zelda 15

wwf/e games 15

sonic 13

Well, I don't remember from the top of my head, but the CIV series, certainly and Total War series, I think. AoE and Europa Universallis.

no specific order:

Final Fantasy: (FF3 DS, FFIV DS, FFVI, FF Chronicles Ps1, FF VII, FF VIII, FF IX, FF X, FF X-2, FF XII, FF Tactics)

Street fighter: (SF2, SF2 Turbo, SSF2, SSF2T, SSF2Tx, SSF2THD remix, SF Alpha, SF alpha 2, SF alpha 3, Street fighter Collection PS1, Street fighter EX+alpha, Street fighter EX + alpha 2, Street fighter anniversay Ps2 (SF3 + SF2), street fighter alpha anthology, Street fighter 4.

Pro evolution soccer: ISS pro evolution 98 (PS2), PES 2 (PS2), PES 3 (PS2), PES 4 (PS2), PES 5 (Ps2), winning eleven 8, winning eleven 9

King of fighters: KOF 94, KOF 95, KOF 96, KOF 97, KOF 98, KOF 99, KOF 2000 & 2001, KOF 2002, KOF Neowave

Resident Evil: RE1 (PS1), RE 1 (PC), RE 1 DC (PS1), RE 2, RE 3, RE 3 Last escape, RE code veronica, RE 4, RE 5

WOWWWWWWWWWW, that's a lot of games

Lets see

Lunar - 6 (TSS, EB, SSSC, EBC, MS and DS)
Warcraft - 6 (WC2 battle net, WC3-RoC, WC3-TFT, WoW, WoW-TBC, WoW-WotLK)

Few other franchises where I have most of the games, but there aren't that many (UT, Total War...)

I guess Half-Life too, I have HL, HL:OP, HL:BS, CS1.6, HL2, CS:S, Ep.1 , Ep.2 , TF2 and Portal. Those are the ones I bought.

Final Fantasy: 1-12 (except 11 as I don't play MMORPGs) even X-2... god that was a mistake.

Pro Evolution Soccer 2-2009

Smackdown until the end of PS2 gen... can't remember how many games that is exactly.

If we include expansion packs then next would be Age of series (AOE1 + Rise of Rome, 2 + Conquerers, Age of Mythology + Titans, 3 + Warchiefs and Asian Dynasties). Otherwise next would be:

Tekken: 2-5, Tag & Dark Ressurection on PSP

Neck and neck for 5th/6th place:
Metal Gear: MGS1, 2, 3, 4 & Portable Ops
Mario: Super Mario World, Super Mario Land 1&2, Mario all stars, Mario Galaxy

I don't know right off hand, but I think I can claim 30 Sonic games.

I remember eight for the Game Gear,
at least six for the Genesis (including CD and 32X),
a couple of Saturn,
a couple of DC,
a PC compilation,
two Xbox (one compilation),
two GC (both compilation),
a GBA game
and four Wii games plus two more he is in (SSBB, M&S).

Mike from Morgantown

1. Mario
2. Zelda
3. Resident Evil
4. Castlevania
5. Metroid

The only one I can think of right now is pokemon.

Red
Blue
Yellow
Silver
Gold
Crystal
Ruby
Emerald.

8 games.

Pokemon I think I have them all except for crystal and sapphire.