Defense Grid 2 is a tower defense video game developed by Hidden Path Entertainment. Players strategically place various types of towers to defend against waves of alien invaders, utilizing unique abilities and upgrades to enhance their defenses. The game features a single-player campaign with multiple levels and challenges, as well as a multiplayer mode that allows players to compete against each other. With its engaging gameplay and detailed graphics, Defense Grid 2 builds on the success of its predecessor, offering new strategies and tower types for players to explore.