Much of it depends on the culture and industry. For a safe bet, nice pants and a nice shirt let's them know you prepared and that the company is worth your tim

Much of it depends on the culture and industry. For a safe bet, nice pants and a nice shirt let's them know you prepared and that the company is worth your time. Dressing down too much is not helpful. On the flipside, wearing a suit is actually overkill and may lead to impressions you are hiding something (unless you are going to be in finance). Developers don't really trust the suit, especially in the game industry. As long as you feel confident in it you will do well. You might be in interviews for many hours for each one, bring water and make sure you are comfortable.