The Battlefield 1 open beta doesn't officially start until tomorrow, August 31, but some Battlefield Insider members can start playing today. If you signed up for the free program by August 21 and selected your platform of choice (PS4, Xbox One, or PC), a code for the beta should be landing in your inbox today.

A message accompanying the code also reveals a special incentive. If you reach rank 15 and play on at least four different days, you will unlock a "Battlefield 1 Beta Dog Tag." This will be delivered to your account when the game launches on October 21.

Come August 31, the Battlefield 1 open beta will be available for all players. You won't need a code, either, as the beta client will simply show up in the PlayStation Store, Xbox Store, and Origin on PC.

The Battlefield 1 beta takes players to the Sinai Desert map, which features horseback combat, a deadly armored train, planes, and more. There are two modes in the beta: Conquest and Rush. Matches can support up to 64 players. Check out this post to learn even more about Sinai Desert.

EA didn't say when the Battlefield 1 beta will end. However, we know it will be at least four days long. In other news about the beta, EA recently confirmed it will not require PlayStation Plus on PS4, though Xbox One owners will need to have an Xbox Live Gold membership.

Are you going to play the Battlefield 1 beta this week? Let us know in the comments below!