Appy Entertainment‘s physics-based puzzler game, Trucks & Skulls NITRO, is permanently on sale for free. Come again? Trucks & Skulls NITRO is free until the Age- of Aquarius/Mayan Apocalypse/the end of time/or God forbid an asteroid wiping all man kind. You get the point though. As for the iPad specific counterpart, Trucks & Skulls NITRO HD, it’s free for this weekend only as well. Let’s just hope neither of the the Age- of Aquarius/Mayan Apocalypse/the end of time/or God forbid an asteroid wiping all man kind doesn’t happen anytime soon…

Free App A Day and Appy have teamed up to set Trucks & Skulls NITRO on sale for free to celebrate Independence Day. As noted in the title, the sale will be over the July 4th weekend, so you will have plenty of time to pick this game up. Also something to take note of, is that this sale is world-wide, so you international iOS gamers can pick up this game for free as well.