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Sunder Siege

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About Sunder Siege

Sunder Siege is an incremental physics game where you swing a wrecking ball to smash monsters before they reach your home. Defeating monsters earns essence, which you spend on upgrades for the ball and your home. Build up from a wooden hovel to a stone castle with archer and mage towers.

Game modes

The game has three modes:

  • Standard: play the default mode.
  • Night Terror: fight in stormy darkness, lit only by your wrecking ball and occasional flashes of lightning.
  • One-shot: begin with all upgrades and see how long you can last before a single monster reaches your base.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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