Almost Heroes is a real-time strategy game utilizing B-List heroes to prevent disasters from destroying the metropolis of Disacity. The player controls AllerJack, the Hero of Sneeze, to intercept and blow away meteors with his super-powered sinuses. The meteors cast a telltale shadow on their potential point of impact. The player navigates Jack using WASD keys to that "danger zone" to use his power to repel the meteor back to space. Sneezing too early will delay the meteor impact, but will not prevent it entirely. It will still eventually come back down. Sneezing too late will completely destroy the meteor, sending debris out in every direction. Sneezing at the right time, when the danger ring matches the size of the shadow, will safely launch the meteor back into space.
Should a meteor impact the city, it will kill a large portion of the civilian population. Depending on where the meteor lands will determine the amount of lives lost. A meteor hitting a street will only cause a small loss compared to a meteor hitting a building. Every building hit will lose one of its three levels, killing any civilian in that building's level. After 3 hits, the building is destroyed. The player can lose the game if their population reaches zero, or the buildings are all destroyed. The player wins by successfully repelling the meteors away for one minute, and the city and its civilians are (mostly) intact. The surviving population is the player's score.