To play Zombie Defense, visit https://beast.bermudaunicorn.com/zombie-defense in your web browser and select Survival Mode or Campaign Mode. Use the left mouse button to drag and place defenders (e.g., sharpshooters or barricades) from the unit menu onto designated slots along the zombie path (or tap to place on mobile devices). Press 1 to 5 to select different unit types quickly, and click the “Upgrade” button or press U to enhance a selected unit’s damage or range using coins earned from defeated zombies. In Survival Mode, deploy units to survive as many waves as possible, earning points per zombie killed; in Campaign Mode, complete mission objectives, like protecting the outpost for a set time, to progress. Your outpost’s health is shown at the top; the game ends if it’s overrun. Collect power-ups like airstrikes or speed boosts dropped by zombies. As waves grow fiercer, prioritize heavy units against “Beast Zombies” to hold the line. Aim for high scores to top the Beast leaderboards!