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Space Hack and Machinarium are on sale at Direct2Drive for $3 each. Machinarium is also on sale at Direct2Drive UK but it’s a little more at £4.25. Space hack is £4.95 but I don’t think that’s a sale price. Use coupon code 9AB69BC99AAB36F40D2CB2639D783C32 for 15% off your order. If that code expires you can generate a new one at the Promo Coupons page.