Mushrooms are one of those small but important resources in ARC Raiders, especially when you're trying to upgrade Scrappy or craft nature-themed items during extraction runs. They don't stand out much, and most of them grow on tree trunks, roots, or fallen logs, so you usually need to slow down and actually scan the environment instead of sprinting past everything ARC Raiders Boosting. 

The best place to start is the Hydroponic Dome in the Dam Battlegrounds. It sits north of the water-treatment area and has mushrooms both inside the facility and at the base of nearby trees. Because the spawns tend to alternate between the indoor and outdoor spots, you can check both quickly without dealing with too many enemies. If the dome is empty, step outside and sweep the western trees. Mushrooms cling tightly to the bark, so it's easy to miss them if you're rushing. This loop is close to a central extract point, so newer players can farm safely without getting dragged into long gunfights.

There's also a quieter backup option southwest of the testing annex. You'll know the area when you see the big broken robot lying among twisted metal and fallen trees. Mushrooms often appear on the logs and debris around it. Enemy pressure here is usually light, and the nearby extracts make it a quick in-and-out run. Even if the dome doesn't give you much, this wreckage area usually adds a couple more to your haul.

If you want the biggest numbers, the western swamp below the dome is the densest mushroom zone in the map. The trees there practically grow on top of each other, and most of them can spawn mushrooms on their trunks or roots. Start just east of the main facility and work your way toward the swamp lift, circling the bigger trees along the way. Weather sometimes makes visibility worse, but the sheer amount of trees makes it worthwhile. With a full loop you can walk out with a stack, especially if you clear out ARC bots so you can move freely.

Other maps can drop mushrooms too, but they're generally less consistent. Spaceport has a decent spot south of the Little Hangar near the container yard. Blue Gate can spawn some around trees or raider hideouts but tends to be random. Buried City is the least reliable and usually isn't worth the effort unless you're there for another objective. Lush Blooms events can change everything, though—these occasionally add mushroom baskets near raider camps and water zones on most maps, letting you grab a bunch in one go.

One of the easiest guaranteed spawns is actually at the rocket assembly area near the trench hatch east extraction. There's a ramp on the north side of the building where mushrooms almost always show up. If you're doing fast resets and just want a few at a time, this spot is very dependable and doesn't require any big route planning.

Once you get used to these spots, mushroom farming becomes a simple routine. Just hit the dome, check the wreckage, sweep the swamp, and extract cleanly cheap ARC Raiders Coins. With consistent routes, you'll stack enough for Scrappy upgrades and crafting without feeling like you're grinding.