Video Games and related stuff (no spaces no capital letters)

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Across
  1. 2. Zac likes this one.
  2. 3. Website to play "math" games.
  3. 5. In this game you are a goat.
  4. 8. Find the imposter.
  5. 9. Luigi.
  6. 11. Puppet Master
  7. 12. Ball rolling down a hill.
Down
  1. 1. Hats. There's nine classes, Heavy is one of them.
  2. 4. Survival block game.
  3. 6. Game platform named after steam.
  4. 7. Idle game where you click a cookie.
  5. 10. Villain is a potato.