Inspired by the popular Herzog Zwei for the Sega Genesis, AirMech puts the player in similar perspective of a giant transforming robot that can fly above the battle as well as land on the ground to aid units. The game revolves around the player controlling their AirMech directly and then building units to assist in achieving whatever the goal of the game mode is. The player can build units and pick them up and can place them down on the battlefield to take part in the battle. The main objective of the game is to destroy the other team's fortress and/or keep the player's fortress running. The fortress spawns creeps which are infantry units that can capture outposts. Outposts are buildings that can heal AirMechs and units if they are picked up.
Players can unlock units, pilots and AirMechs with ingame currency called Kudos, which are earned after each match is completed. Players also gain Persistent XP on completion of matches. The player can unlock various units as their level increases. Alternatively, players can purchase Diamonds which can unlock units and cosmetics. Any pilot/unit/item/airmech that affects gameplay can be bought with Kudos.
Players have two resources to manage : Credits and Power. Credits are generated by the fortress and every outpost the player owns. Different units require a certain amount of credits to be built. Players can also build special units called money makers to generate more credits. Power is a resource that is used by units when they are building and when they are deployed in the battlefield. The power system is a soft version of the Upkeep system. The Fortress, along with special outposts called Power Stations generate power. Players can also build certain units to increase power generation like Generators. Power is stored in a pool called the power pool, all generated power goes into the power pool.
A Player can select up to seven different AirMechs and various pilots and items. Each AirMech has different abilities and stats. Pilots provide stat boosts to AirMechs and/or Units. Some Pilots also affect credit and power generation. Items provide tiny stat boosts that do not affect gameplay significantly.
AirMech features six different game modes: solo, co-op, player versus player (PvP), capture the flag (CTF), survival, and challenges.