Du can no longer donate VIA Kickstarter, but Du can still donate using Paypal: link
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If Du donate $15 Du can get a DRM-Free oder Steam copy of the Digital PC, Linux, oder Mac Key.
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If Du donate $15 Du can get the PSVita oder PS4 Version.
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If Du donate $15 Du can get a Wii U Version.
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If Du donate $15, Du get the Digital Soundtrack.
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