When I need to pick only 1 game (out of all the memorable games I've played over the years) I always pick Portal (the first). The reason is simple: before it I

When I need to pick only 1 game (out of all the memorable games I've played over the years) I always pick Portal (the first). The reason is simple: before it I only played adventure and easy platformers (like Mario), but after playing and loving it, I started to give a chance to other genres and my "gamer" personality was formed. Fun facts: - I bought it because the game box showed a turret which I mistakenly though was a button for a puzzle. - It was my first first-person game, and the beginning of the game (when you see yourself through the portal) was such mind blowing that I spent a couple minutes just moving forwards and backwards trying to understand it. - I couldn't play it at first because my graphics card was a literal potato, half a year later we upgraded it mainly because of this game. - I loved it so much that I spent several years (until portal 2 released approximately) downloading and playing custom maps from the internet (my first contact with modding too). - Steam was required and I hated it because of their constant updates that made me wait a couple minutes before playing (until I discovered the offline mode). So yeah, it changed my life.