Auction Defense

You don't buy towers here. You win them at auction.

Auction Defense is a strategy tower defense game: every round, three towers go up for auction and you and your rival each slip a sealed bid into an envelope. Nobody sees the other bid until the envelopes open. Whatever you win, you build, and the waves are coming.

■ 8 rivals, 40 stages
· From Toby the apprentice auctioneer to Bruno the cannon general, Sylvia the frost witch and Ignis the dragon lord.
· Every rival has favorite towers and their own bidding style.
· Each chapter ends in a boss stage. Earn up to 3 stars by keeping your lives.

■ Sealed-bid auctions
· Three towers per round; bid only on the ones you want.
· Highest bid wins, ties go to a coin flip.
· Overpay and you're broke next round. Hold back and your rival takes everything.

■ 46 towers, 31 combos
· 15 base towers: archers, cannons, frost, lightning, snipers, flames, poison darts, mortars, lasers, ballistas, war banners, wind and curses.
· Merge two towers into 31 combo towers like the Plague Cauldron, Railgun, Blizzard or Reaper.
· Hidden legendary combos: the Frost Wyrm and Storm Wyrm nests.

■ Same waves, two castles
· You and your rival face the same enemies, each on your own board.
· Every fifth wave a giant Overlord marches in.

■ Relics and the season pass
· Build your own bidding strategy with 12 relics and level them up.
· Daily login rewards and season pass rewards.

■ Great for players who
· love tower defense and random defense games
· enjoy short matches full of mind games
· like clearing stage after stage in a strategy game

The game is free with optional in-app purchases (gems, starter pack, season pass, ad removal). Relic chest odds are shown in the in-game shop and on our terms page.
Progress is saved on your device.