Terminus Breach TD

From BoardGameGeek:

In Terminus Breach TD, a semi-cooperative tower defense board game for 1-4 players, you play as one of 12 Generals defending against 15 waves of enemy Drakka. Set up a map on the fully modular board, build your starting towers, and prepare for battle! Each wave is a turn, and consists of five phases: Phase 1 – ADVANCE the Drakka on the board, further along the path. Phase 2 – DRAW new Drakka to the path as they enter the battlefield. Phase 3 – DEFEND by using your towers to damage, poison, or slow Drakka. Phase 4 – RESOLVE by collecting Bounty, petitioning the Emperor for aid, or receiving Imperial Favors and Sanctions. Phase 5 – DEVELOP your defenses by building new towers and upgrading your existing towers. Every 3 waves is a Battle, and at the end of each is a powerful Boss with unique abilities. Use the Lull between Battles to collect Victory Points, receive benefits from War Chests and Spy Networks, and place the next Battle deck - each with five new, faster, stronger Drakka. If enough Drakka get through your defenses to cause a widespread panic, the Emperor will recall the armies and the game ends. Survive all 15 Waves and clear the board without that happening, and you've successfully defended your homeland!