Introduction to City Siege 4: Alien Siege
City Siege 4: Alien Siege shifts the series from city streets to a hostile planet. You guide a small squad through side-scrolling stages that mix shooting and light tactics. Missions ask you to rescue civilians, clear alien nests, and protect your own troops. You earn cash for every success and use it to grow your team. The pace feels lean and focused, with each map pushing you to think before you pull the trigger.
The roster gives you room to experiment. Riflemen handle basic fights, snipers pick targets at range, and rocketeers crack armored pests. Medics keep the line moving, while heavy rides like tanks and mechs soak damage and punch through defenses. You buy units between missions and upgrade firepower, armor, and vision. You swap control on the fly, set up angles, and bait enemies into crossfire.
Stages pack hazards and toys that reward smart play. Destructible terrain triggers chain blasts, acid pools force new routes, and turrets guard choke points. Boss encounters raise the stakes with huge creatures and swarms. Optional goals push you to rescue every civilian and collect energy crystals for extra income. Losses hit your wallet, so careful moves pay off more than wild rushes.