Defence of Sky

Defence of Sky flips the classic tower defense formula skyward. Instead of ground-based paths, enemies sweep in from all directions, forcing you to think in three dimensions as you place turrets on floating platforms and rooftops. Each level presents a fresh layout with unique choke points and sightlines, so adapting your defense layout is key to survival. The game keeps pacing tight—waves escalate quickly, and between them you must decide whether to repair damaged units, build new ones, or invest in upgrades that boost range, damage, or fire rate. Visuals are crisp and clean, with a satisfying boom accompanying every destroy. The UI is straightforward, letting you pause mid-battle to reassess your strategy without penalty. With a dozen missions of increasing complexity and a challenge mode for veterans, Defence of Sky offers a solid challenge for strategy fans who like their tower defense with a vertical twist. Whether you have five minutes or an hour, the wave-based structure makes it easy to jump in and out.