Dosa Survivor follows Dosa, who is transported to a strange fairy-tale world during a storm and must find a way home. Its central activities are collecting heroes, building teams, and battling monsters, villains, and powerful bosses inspired by fairy tales.
Changing stage encounters
The source describes new heroes, monsters, and skills appearing every time a stage is played. These changing elements give each stage visit a different set of characters and abilities to encounter. The description does not specify how these changes are selected or how they affect the rules of a battle.
Collecting heroes and forming teams
Players collect heroes from different fairy-tale worlds and build teams from them. Each hero has unique skills, and the source encourages experimenting with combinations and using those abilities during battles. It does not give specific skill effects or explain a fixed team-building formula, so team choices are presented as a way to suit a player's style rather than a guaranteed route to victory.
Battles and boss progression
Combat includes encounters with fairy-tale-inspired monsters and villains, as well as challenging boss battles. The stated progression involves defeating bosses to advance to later stages. The source also recommends collecting and leveling heroes for these fights, but does not provide level requirements or explain how much leveling changes a hero's abilities.
Idle-style progression
Dosa Survivor includes idle-game elements that allow progression even when the player is not actively playing. The description does not specify which progress continues or how it is calculated, so this feature is best understood as a general part of the game's progression rather than a detailed battle rule. Together, the stage encounters, hero collection, team choices, and boss fights frame the effort to help Dosa escape the unfamiliar world.