hmm, its hard to say really, ive played so many games in my life.
I started with... gameboy. The origional big brick one(i got the clear version, i felt so special!). Umm, it came with super mario bros, which i clocked many many times. I then got a few more games, mainly mario and wario games, and eventually got pokemon. I finished every game i got atleast 5 times(except pokemon silver, prolly only about 3 times).
Umm, i got a psOne when it came out(not psx, psOne). and played a HEAP of games on it, too many to name(or even remember). Spyro, gta, quake, tekken, jackie chan stuntmaster to name a few.
I then got a ps2, which i fucking loved, man ps2 owns! It was the most ace console tbh. I loved gta3 on that thing, it was like ''omfg, games are so cool now!'' sorta expression when i played it. I played ALOT of dif games on it, but the gta series was really something, i played and bought all of them, vice city was pretty awesome, the motorbikes and boats made it just that much better, and i loved the setting(80's) and the graphics to emphasize it being miami, the sun etc. San andreas was pretty cool, but the whole ghetto thing.... meh.
I got PC, and that really changed my view on what games i liked. UT2004 was my first game, and i LOVED IT. I got so freaken good at it, got in top5 for world rankings at one point(for players of the week). Which, well, isnt easy. I was only 13-14 i think, and i met heaps of people and made my first 'online friends'. Bunch of 20-45yo americans, real cool guys.
I then talked to them and said ''you know of any good games out atm, im thinking of buying something new'', one recommended hl2, and i took his word for it, he knew his shit. So, i went to gamesman the next day, and bought hl2 to find that it came with CSS. Well, after playing hl2 for a few hours and thinking it was pretty cool, i played CSS. I was HOOKED instantly, seriously, that game IS THE SHIT. I use to wag 4 out of 5 days a week to play that 12 hrs a day, i did that for about 6 months and became a well known player throughout the NZ community. I have played it since and am still play it, i have been in many clans but am finally in a good clan, and am playing in prize tournaments aswell as national tournaments. I love to play RTS now and then, but FPS really is what im all about these days.
At the end of the day, i think the first game i truely MASTERED, was ut2004.
there you go, my history on gaming.