If your goal is to flawlessly abstain from any level of support of inflicting suffering on animals (even by proxy) then you should not buy the game.

However, if you are using a PC/Xbox/PlayStation/etc then some level of suffering was created on humans and non-human animals (silicon, gold, etc) to produces those platforms, so it's not exactly like it's possible to perfectly abstain.

Other vegans on this subreddit may disagree, but what you do ONE time just doesn't matter. Play the game, don't play the game, that ONE event is basically inconsequential. Your behavior "trend" is what matters in the long term. Did you overwhelmingly reduce the suffering of non-human animals through your choices? If you were not a perfect vegan ONCE, even intentionally, it just doesn't matter. It matters what you do the MOST of the time.

Do your best, but realize that it's impossible to live a perfectly cruelty free life. Don't "lawyer" you own behavior and abandon veganism altogether.