In 4:LOOP, it all comes down to FLUX. Senior Concept Artist Tian Gan shares several concept explorations of the mysterious substance buried deep beneath Earth's crust. From how Flux appears in the environment, to how it behaves in missions, to how players carry it, the team wanted Flux to feel volatile, powerful, and out of this world.

Check out early concepts for KILLBOTS, the main threat you and your squad will face off against in 4:LOOP.

Two tons of terror in a bulletproof hull. Teamwork might just take it down - if its minigun doesn't tear you apart first.

All of the Killbots in 4:LOOP are deadly, but none more so than the "Heavy." Armed with a minigun and a bulletproof hull, the Heavy requires teamwork and a whole heap of firepower to go down.

DEATH FROM ABOVE Concept artists Lucas Zung and Tian Gan share concepts for Scout Bots and Drop Pods, which together form one of the unique gameplay systems in 4:LOOP. Scout Bots swarm the map, searching for players. Once they find you, they'll call down a Drop Pod full of Killbots.

Reinforced armor, Thermal vision. Smoke grenades. The Shotgun Bot was engineered to hunt you down.

A WHOLE LOTTA BUCKSHOT The shotgun bot hits like a truck and is just as tanky. To make its gameplay function clear, our concept team developed unique looks for both their armor and their weapons.

The Invaders' first line of defense. Anything that gets in their way is dealt with. Swiftly.

Scout Bots might seem harmless — until they call down a Drop Pod full of Killbots. Take them out before it's too late.

Flux. It's what the drills are digging for. It's why they came. And it may be the only thing we can use to stop them.

Behind the Drills: concept work by Lead Concept Artist Lucas Zung. Lucas's concept explores multiple designs for the invaders' drills, from standalone units to tethered machines. The colossal structure from Lucas's final design can be seen towering over many of the gameplay maps, cutting an imposing skyline as you fight to save the world.

Tomorrow at 5 PM PT: live 4:LOOP gameplay + an AMA with the devs. See what's new and bring your questions. 📅 Wed, Sept 30 🔗 discord.com/invite/4loop

Concept art for the Mothership, from Lead Concept Artist Lucas Zung. Before arriving at its current design, Lucas explored a range of unique shapes and behaviors for the alien Mothership. From the imposing "Eye of the Storm" to the mysterious "Moon Base," the team considered multiple approaches before landing on the massive, ring-shaped vessel that dominates the skyline today.

The invasion escalates. 4:LOOP Closed Beta 2 goes live on Thursday, August 13, 2026 at 10:00 AM on PS5 and PC (Steam). A lot has changed since the first Beta! Sign-up now at play4loop.com/