Blockader turns a small circular arena into a busy survival challenge. Strange space creatures rush toward you from different directions. Your weapon fires automatically, so your main job is to move and survive.
Each run develops through random upgrade choices. You can improve attacks, add special effects, strengthen defense, or build around a specific strategy. Later waves test whether your choices work well together.
Move around the arena with WASD or Arrow Keys. Your character attacks automatically.
Keep moving while watching the enemy positions. As more enemies appear, find the widest open route. Move around the ring instead of cutting directly through enemy groups.
Continue moving while your automatic attacks eliminate nearby enemies. Watch the Sniper and avoid predictable movement when its attacks become dangerous.

After clearing a wave, upgrade cards appear. Read the effects before choosing one.
Look for cards that support your current build.
Extra attacks can help against groups. Special effects can add new damage types. Defensive upgrades become useful when later waves leave less room to move.
Collect stars during your runs. Use them to unlock gear and skill-tree upgrades. If your damage is already serious, consider improving defense or utility.
If you enjoy experimenting with physics and unpredictable situations, play Ragdoll Playground.