The goblins keep coming. Put their loot to work. Boomblin Barrage is a single-player tower defense game where you defend a stronghold and spend battle rewards on permanent upgrades.

You start each run with a few towers and limited resources. Decide where to spend them as you work toward the final wave. Between runs, a branching upgrade tree lets you strengthen your defenses and unlock new ways to fight.

Make every coin count

In Boomblin Barrage, the coins you spend on a direct Coin Cannon attack could also pay for another tower or an upgrade at a vulnerable position. Decide what you need now and what can wait until the next wave.

Plan your defense

Build on fixed tower slots and combine towers with different combat roles. Mark priority targets before they get through. Packed groups of grunts call for a different approach from fast runners, tough elites, and bosses.

Grow stronger between battles

Permanent upgrades carry over between runs in Boomblin Barrage. Spend your rewards on damage, attack speed, critical hits, starting resources, coin generation, abilities, and stronghold durability.

Upgrade resets are free, so you can try a different build. Put more into coin generation if you want more to spend, focus on critical damage, or use crowd control to slow groups of enemies.

Build combinations that change the battle

• Hit more enemies with multishot.
• Chain critical hits for increasing damage.
• Slow groups and spread damage between linked enemies.
• Send enemies back along the path with rewind effects.
• Make defeated goblins explode, damaging nearby attackers.
• Unlock automatic tower upgrades.

Try these abilities together as you unlock them. Combine crowd control with direct attacks, or use chain reactions against packed waves. Adjust your build to suit the level.

Take on the next challenge

Each handcrafted map has its own layout and enemy waves. Optional time trials and challenge objectives give you more to attempt, along with early-wave rewards. The biggest rewards come from surviving the final wave, and you can spend them preparing for your next battle.

Choose your next upgrades in Boomblin Barrage and see how your revised defense holds up.