GOBILLIONS

Build the fortress. Find the combo. Hold against the horde.
GOBILLIONS is a tower defense game where the fortress you build is part of the fight. Turn narrow approaches into killing grounds, combine weapons and magic, and keep your castle standing as goblins climb, fly, and smash their way through your defenses.

Lay out your walls across the terrain, stack them higher, or add rows of stone to resist a charge. Build towers on supported wall decks and cover each approach with overlapping fire. Height buys time against climbers; depth helps stop Siege Giants. When masonry gives way, falling rubble can crush attackers—and leave a breach you need to defend.

Build an arsenal of archers, artillery, rapid-fire guns, homing-missile Mages, and specialized spellcasters. Upgrades apply to every tower of the same type, including replacements and towers you build later. Add archers to your battlements, strengthen your volleys, or turn a Fire Mage's impact into a chain of bouncing explosions.
Placement makes the difference. Relay lightning through Nova Crystals, ignite an Alchemist's poison with Fire Mages, or split a Farcaster's beam through a crystal network. Experiment with combinations that make neighboring towers stronger together.

BUILD YOUR CAMPAIGN
Take on a sequence of campaign battles and return to your stronghold to develop your defenses. Earn Orbs from cleared waves for upgrades and spell research, and Arcana from first-time level victories to unlock new tower types. Spend the Gold you earn in battle on construction and repairs. Your campaign research carries forward as you face the next challenge.
Choose Normal, Survival, or Onslaught difficulty—or test how long your defenses can last in Endless mode.

Fast Wargs, wall-climbing goblins, flying Wyverns, Trolls, and Siege Giants put different parts of your fortress to the test. Cast spells to break an assault, freeze a crowd, or protect a collapsing line. Rebuild between waves, prepare a fallback, and keep the castle standing.