If we're counting Intentional things, I played through all of Dead Space 1 without using any weapons except the starting gun. I never once used any other gun, not because I didn't know how to, it was just that the starting gun did everything I needed a gun in that game to do, and when I saw videos of it prior to playing it, I said to myself "I hope you get that gun early, cause that's actually pretty neat". It was the first gun. I was happy with it, never even considered upgrading.
I got the "Use the first gun only" achievement basically by accident. I didn't even know the achievement was there until I got it at the end of the game. I haven't played the game again, so to this day, I've not yet fired any other weapon in that game.
I got the "Use the first gun only" achievement basically by accident. I didn't even know the achievement was there until I got it at the end of the game. I haven't played the game again, so to this day, I've not yet fired any other weapon in that game.