Total size when I play this game is 766 MB. Third person shooting with limited visibility, the faster you move the louder the footsteps sound. Yes, the concept is like fighting in a dark place. Link download for Android user

Bullet Echo: PVP Shooter - Apps on Google Play
https://play.google.com/store/apps/details?id=com.zeptolab.bulletecho.google
There are many modes that you can try, for the initial rank you can only play battle royale mode. Each team consists of 3 members. If you get a winning streak, there are chests that can unlock new heroes. The winning streak requirements vary for each rank. Heroes are equipped with different permanent weapons. There are initial melee weapons pistols, hero weapons consist of shotguns, assault rifles, machine guns and snipers.
Like battle royale in general, loot consists of ammo, armor, health packs, weapon part upgrades, adding 1 chance to do a special attack. The higher the rank, the more varied the loot quality.
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Thanks and see you next game...