Download. Category Sandbox. Size 4 MB. Program by Mojang, PC Gamer. Review. Comments. Minecraft - PC Gamer Demo. Minecraft now has a demo by PC Gamer, allowing players to try the hit sandbox title for 90 minutes. You are able to create as many worlds as you want and replay for 90 minutes, but once the time is up, that world becomes locked. Apr 20, · Download the Minecraft demo (4MB) here. The demo is generous: every tool, mineral and item is accessible, and you can dig, frolic, and build in your world for 90 minutes before it "locks" and Author: Evan Lahti.