Game: Play Warlords 2: Rise of Demons, a free online game on Kongregate

Big difficulty modifier on easy difficulty. Gives you more money for kills etc.
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No cooldown on spawning units
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Press K to win the level
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Something with the Achilles cheat
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Unlimited "Charge!" Special Ability
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Buying units adds gold
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Buying upgrades adds gold
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Credits go to various people