Al salam alaikum sheikh, there is a video game where when u finish the game the stats show u who was ur nemesis and to people who r their nemesis. Nemesis in greek metho اعوذ بالله is the god of revenge. But its so known nowadays that its only ur sworn enemy and thats what the context leads toحرام؟

Ustadh AbdulAziz al-Haqqan

Do not dig too deep. The word as it is used today means a sworn enemy, that is the meaning the game intends, and you are not intending anything else by it.