@sonofzeus use by 8/26/22 here. Reading a few articles some kits can be stored for 8 months, others were extended to 12 months. Of course, this brand was not mentioned.
"Age of Steel: Recharge" is a 2D strategy with a view from the side. You're taking the role of commander, who was entrusted the management of the military base. Your mission is to defend a base from the waves of enemies at any price.