RAID HQ is a free-to-play strategy game available on iPhone that combines elements of card collecting and base building. Players can collect and upgrade a variety of troop cards, each featuring unique weapons and abilities, to create a powerful squad. The game encourages players to develop their island into a fortified stronghold while also raiding enemy bases to unlock rewards and strengthen their troops. The focus on customization and strategy allows for varied gameplay experiences as players construct their raiding decks to face opponents.

In addition to the core gameplay, RAID HQ offers a social aspect where players can create clans, share troops, and communicate with fellow gamers. With the option to explore a vast archipelago for resources and new squad cards, players are constantly motivated to progress through leagues and leaderboards. The game requires a network connection to play and includes optional in-app purchases for those looking to enhance their experience.