Blockader

Blockader is a top-down 2D survival shooter by ZapGames, set in a small circular arena with a blocky space theme. Enemies close in from several directions while your weapons attack automatically. Your main job is to keep an escape route open and turn each wave's rewards into a build that can survive the next.

It is a roguelite built around changing upgrade choices, not manual gun aiming. A run can develop around extra projectiles, lightning, poison or allied attacks, with movement and health upgrades helping you stay alive long enough to use them.

Move While Your Weapons Work

Use the arena's open spaces to keep distance from approaching creatures. Automatic attacks handle nearby targets, but they cannot choose a safe route for you. Watch both the crowd and incoming shots: ranged enemies can threaten a gap that looks clear of close-range attackers.

Clear a Wave, Choose a Direction

Defeating enemies advances the wave and leads to an upgrade choice. Movement, Health, Ammo and other cards change how your character handles the next encounter. Additional attack effects can broaden your coverage, but a scattered set of bonuses is not always as useful as several that support the same plan.

Reroll with a Reason

When a reroll is available, it replaces the current card choices. First check whether a card fixes your immediate problem: more damage if enemies linger too long, or mobility and durability if you cannot get through a wave safely. Reroll when the offered options do not help, rather than rejecting every ordinary-looking card.

Attacks are automatic during combat. These desktop controls handle movement, upgrade choices and menus; use the numbered shortcut displayed on each card.

• W A S D or ↑ ← ↓ →: move
• Number Keys: select the upgrade with the matching card label
• ␣ Space: reroll upgrade choices when available
• Tab: show or hide statistics
• Esc: pause
• LRMove Mouse: point to menu options
• LRLeft Click: select an option or upgrade

On phones and tablets, use the on-screen movement controls and tap an upgrade to select it.

• Turn before the gap closes. A small arena gives you little room to recover once enemies surround you. Move toward open ground while there is still a route through.
• Read the space beyond the nearest enemy. A swarm is easy to notice; a projectile crossing your next path is easier to miss. Check both before committing to a dodge.
• Do not chase a pickup into a crowd. Circle back when your attacks have cleared room, instead of trading health for a resource you cannot safely reach.
• Build around a useful combination. Improve attacks that are already helping rather than collecting unrelated effects just because they look unusual.
• Spend a wave fixing your weakest point. If your damage is adequate but you keep taking contact hits, a movement or health card can be more useful than another attack bonus.