Bloons Tower Defense 4 is where the BTD series found its full voice — a tower defense game about popping waves of balloons using strategically placed monkey towers. Each tower type has different strengths, costs, and upgrade paths that interact in ways that reward planning over raw firepower.
Bloons follow a fixed path across the map. Your job is to place towers along that path so they pop bloons before they escape at the end. Different bloon types resist different towers — lead bloons block darts, camo bloons are invisible to most towers, and ceramic bloons take multiple hits. Matching tower types to bloon types is the core strategic layer.
Place your first few towers near the start of the path, not the end. Early placement means bloons take damage across the full length of the path rather than slipping through undamaged until the last towers. Coverage across the full route matters more than cluster of power at one point.
The Monkey Village tower increases the effectiveness of nearby towers significantly. Placing one centrally among several towers often outperforms adding an additional attack tower in the same spot.
Play Bloons TD 4 and more free unblocked games at Unblocked Games G Plus — works on any school Chromebook, no downloads or logins needed.