diff --git a/.github/workflows/nightly_release_testing.yaml b/.github/workflows/nightly_release_testing.yaml
index 9fa0f8868..2f35fe692 100644
--- a/.github/workflows/nightly_release_testing.yaml
+++ b/.github/workflows/nightly_release_testing.yaml
@@ -66,6 +66,7 @@ jobs:
           DEN_TESTER_TOKEN: ${{ secrets.DEN_TESTER_PROD_TOKEN }}
           DEN_TESTER_USERNAME: ${{ secrets.DEN_TESTER_USERNAME }}
           API_SERVER_URL: ${{ env.API_SERVER_URL }}
+          EKS_ARN: ${{ secrets.EKS_ARN }}
 
       - name: Run cluster and not on-demand tests
         env:
@@ -104,6 +105,7 @@ jobs:
           DEN_TESTER_TOKEN: ${{ secrets.DEN_TESTER_PROD_TOKEN }}
           DEN_TESTER_USERNAME: ${{ secrets.DEN_TESTER_USERNAME }}
           API_SERVER_URL: ${{ env.API_SERVER_URL }}
+          EKS_ARN: ${{ secrets.EKS_ARN }}
 
       - name: Run on-demand aws tests
         env:
@@ -145,6 +147,7 @@ jobs:
           DEN_TESTER_TOKEN: ${{ secrets.DEN_TESTER_PROD_TOKEN }}
           DEN_TESTER_USERNAME: ${{ secrets.DEN_TESTER_USERNAME }}
           API_SERVER_URL: ${{ env.API_SERVER_URL }}
+          EKS_ARN: ${{ secrets.EKS_ARN }}
 
       - name: Run on-demand aws tests
         env:
@@ -184,6 +187,7 @@ jobs:
           DEN_TESTER_TOKEN: ${{ secrets.DEN_TESTER_PROD_TOKEN }}
           DEN_TESTER_USERNAME: ${{ secrets.DEN_TESTER_USERNAME }}
           API_SERVER_URL: ${{ env.API_SERVER_URL }}
+          EKS_ARN: ${{ secrets.EKS_ARN }}
 
       - name:  Run on-demand gcp tests
         env:
@@ -222,6 +226,7 @@ jobs:
           DEN_TESTER_TOKEN: ${{ secrets.DEN_TESTER_PROD_TOKEN }}
           DEN_TESTER_USERNAME: ${{ secrets.DEN_TESTER_USERNAME }}
           API_SERVER_URL: ${{ env.API_SERVER_URL }}
+          EKS_ARN: ${{ secrets.EKS_ARN }}
 
       - name: Run kubernetes tests
         env:
@@ -268,6 +273,7 @@ jobs:
           DEN_TESTER_TOKEN: ${{ secrets.DEN_TESTER_PROD_TOKEN }}
           DEN_TESTER_USERNAME: ${{ secrets.DEN_TESTER_USERNAME }}
           API_SERVER_URL: ${{ env.API_SERVER_URL }}
+          EKS_ARN: ${{ secrets.EKS_ARN }}
 
       - name: Wait to check cluster status
         run: sleep 600 # 10 minutes
diff --git a/tests/conftest.py b/tests/conftest.py
index 337228f2d..c1e7acab3 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -235,6 +235,10 @@ def event_loop():
 
 from tests.fixtures.on_demand_cluster_fixtures import (
     a10g_gpu_cluster,  # noqa: F401
+    den_launched_ondemand_aws_docker_cluster,  # noqa: F401
+    den_launched_ondemand_aws_k8s_cluster,  # noqa: F401
+    den_launched_ondemand_gcp_k8s_cluster,  # noqa: F401
+    den_launcher_v100_gpu_cluster,  # noqa: F401
     k80_gpu_cluster,  # noqa: F401
     multinode_cpu_docker_conda_cluster,  # noqa: F401
     multinode_gpu_cluster,  # noqa: F401
diff --git a/tests/fixtures/on_demand_cluster_fixtures.py b/tests/fixtures/on_demand_cluster_fixtures.py
index 33621641b..c0882d4a1 100644
--- a/tests/fixtures/on_demand_cluster_fixtures.py
+++ b/tests/fixtures/on_demand_cluster_fixtures.py
@@ -1,3 +1,4 @@
+import os
 from pathlib import Path
 
 import pytest
@@ -5,6 +6,7 @@
 import runhouse as rh
 
 from runhouse.constants import DEFAULT_HTTPS_PORT
+from runhouse.resources.hardware.utils import LauncherType
 from runhouse.resources.images.image import Image
 from tests.conftest import init_args
 
@@ -36,14 +38,30 @@ def setup_test_cluster(args, request, create_env=False):
 @pytest.fixture(
     params=[
         "ondemand_aws_docker_cluster",
+        "den_launched_ondemand_aws_docker_cluster",
         "ondemand_gcp_cluster",
         "ondemand_k8s_cluster",
         "ondemand_k8s_docker_cluster",
         "v100_gpu_cluster",
+        "den_launcher_v100_gpu_cluster",
         "k80_gpu_cluster",
         "a10g_gpu_cluster",
+        "den_launched_ondemand_aws_k8s_cluster",
+        "den_launched_ondemand_gcp_k8s_cluster",
+    ],
+    ids=[
+        "aws_cpu",
+        "aws_gpu_den_launcher",
+        "gcp_cpu",
+        "k8s_cpu",
+        "k8s_docker_cpu",
+        "v100",
+        "v100_den_launcher",
+        "k80",
+        "a10g",
+        "aws_k8_den_launcher",
+        "gcp_k8_den_launcher",
     ],
-    ids=["aws_cpu", "gcp_cpu", "k8s_cpu", "k8s_docker_cpu", "v100", "k80", "a10g"],
 )
 def ondemand_cluster(request):
     return request.getfixturevalue(request.param)
@@ -71,6 +89,25 @@ def ondemand_aws_docker_cluster(request):
     return cluster
 
 
+@pytest.fixture(scope="session")
+def den_launched_ondemand_aws_docker_cluster(request):
+    """
+    Note: Also used to test docker and default env with alternate Ray version.
+    """
+    args = {
+        "name": "aws-cpu-den",
+        "instance_type": "CPU:2+",
+        "provider": "aws",
+        "image_id": "docker:rayproject/ray:latest-py311-cpu",
+        "region": "us-east-2",
+        "image": Image(name="default_image").install_packages(["ray==2.30.0"]),
+        "sky_kwargs": {"launch": {"retry_until_up": True}},
+        "launcher": LauncherType.DEN,
+    }
+    cluster = setup_test_cluster(args, request, create_env=True)
+    return cluster
+
+
 @pytest.fixture(scope="session")
 def ondemand_aws_https_cluster_with_auth(request, test_rns_folder):
     args = {
@@ -129,6 +166,42 @@ def ondemand_k8s_cluster(request):
     return cluster
 
 
+@pytest.fixture(scope="session")
+def den_launched_ondemand_aws_k8s_cluster(request):
+    kube_config_path = Path.home() / ".kube" / "config"
+
+    if not kube_config_path.exists():
+        pytest.skip("no kubeconfig found")
+
+    args = {
+        "name": "k8s-cpu-den",
+        "provider": "kubernetes",
+        "instance_type": "CPU:1",
+        "launcher": LauncherType.DEN,
+        "context": os.getenv("EKS_ARN"),
+    }
+    cluster = setup_test_cluster(args, request)
+    return cluster
+
+
+@pytest.fixture(scope="session")
+def den_launched_ondemand_gcp_k8s_cluster(request):
+    kube_config_path = Path.home() / ".kube" / "config"
+
+    if not kube_config_path.exists():
+        pytest.skip("no kubeconfig found")
+
+    args = {
+        "name": "k8s-cpu-den",
+        "provider": "kubernetes",
+        "instance_type": "CPU:1",
+        "launcher": LauncherType.DEN,
+        "context": "gke_testing",
+    }
+    cluster = setup_test_cluster(args, request)
+    return cluster
+
+
 @pytest.fixture(scope="session")
 def ondemand_k8s_docker_cluster(request):
     kube_config_path = Path.home() / ".kube" / "config"
@@ -140,7 +213,6 @@ def ondemand_k8s_docker_cluster(request):
         "name": "k8s-docker-cpu",
         "provider": "kubernetes",
         "instance_type": "CPU:1",
-        "memory": ".2",
         "image": Image(name="default_image").from_docker(
             "rayproject/ray:latest-py311-cpu"
         ),
@@ -156,7 +228,19 @@ def v100_gpu_cluster(request):
         "instance_type": "V100:1",
         "provider": "aws",
     }
-    cluster = setup_test_cluster(args, request)
+    cluster = setup_test_cluster(args, request, create_env=True)
+    return cluster
+
+
+@pytest.fixture(scope="session")
+def den_launcher_v100_gpu_cluster(request):
+    args = {
+        "name": "rh-v100-den",
+        "instance_type": "V100:1",
+        "provider": "aws",
+        "launcher": LauncherType.DEN,
+    }
+    cluster = setup_test_cluster(args, request, create_env=True)
     return cluster
 
 
diff --git a/tests/fixtures/static_cluster_fixtures.py b/tests/fixtures/static_cluster_fixtures.py
index 55494d927..fef9fd3d6 100644
--- a/tests/fixtures/static_cluster_fixtures.py
+++ b/tests/fixtures/static_cluster_fixtures.py
@@ -20,8 +20,9 @@ def setup_static_cluster(
     compute_type: computeType = computeType.cpu,
 ):
     instance_type = "CPU:4" if compute_type == computeType.cpu else "g5.xlarge"
+    launcher = launcher if launcher else LauncherType.LOCAL
     cluster = rh.cluster(
-        f"aws-{compute_type}-password",
+        f"{launcher}-aws-{compute_type}-password",
         instance_type=instance_type,
         provider="aws",
         launcher=launcher,
diff --git a/tests/test_resources/test_clusters/test_cluster.py b/tests/test_resources/test_clusters/test_cluster.py
index 2ff4b8e57..c98054c71 100644
--- a/tests/test_resources/test_clusters/test_cluster.py
+++ b/tests/test_resources/test_clusters/test_cluster.py
@@ -44,7 +44,6 @@
     set_output_env_vars,
 )
 
-
 """ TODO:
 1) In subclasses, test factory methods create same type as parent
 2) In subclasses, use monkeypatching to make sure `up()` is called for various methods if the server is not up
@@ -131,9 +130,7 @@ class TestCluster(tests.test_resources.test_resource.TestResource):
     }
     MINIMAL = {"cluster": ["static_cpu_pwd_cluster"]}
     RELEASE = {
-        "cluster": [
-            "static_cpu_pwd_cluster",
-        ]
+        "cluster": ["static_cpu_pwd_cluster", "static_cpu_pwd_cluster_den_launcher"]
     }
     MAXIMAL = {
         "cluster": [
@@ -142,6 +139,7 @@ class TestCluster(tests.test_resources.test_resource.TestResource):
             "docker_cluster_pwd_ssh_no_auth",
             "static_cpu_pwd_cluster",
             "multinode_cpu_docker_conda_cluster",
+            "static_gpu_pwd_cluster_den_launcher",
         ]
     }
 
diff --git a/tests/test_resources/test_clusters/test_on_demand_cluster.py b/tests/test_resources/test_clusters/test_on_demand_cluster.py
index 5c6372a54..d7e628999 100644
--- a/tests/test_resources/test_clusters/test_on_demand_cluster.py
+++ b/tests/test_resources/test_clusters/test_on_demand_cluster.py
@@ -87,10 +87,13 @@ class TestOnDemandCluster(tests.test_resources.test_clusters.test_cluster.TestCl
     RELEASE = {
         "cluster": [
             "ondemand_aws_docker_cluster",
+            "den_launched_ondemand_aws_docker_cluster",
             "ondemand_gcp_cluster",
             "ondemand_aws_https_cluster_with_auth",
             "ondemand_k8s_cluster",
             "ondemand_k8s_docker_cluster",
+            "den_launched_ondemand_aws_k8s_cluster",
+            "den_launched_ondemand_gcp_k8s_cluster",
         ]
     }
     MAXIMAL = {
@@ -101,6 +104,7 @@ class TestOnDemandCluster(tests.test_resources.test_clusters.test_cluster.TestCl
             "ondemand_k8s_docker_cluster",
             "ondemand_aws_https_cluster_with_auth",
             "v100_gpu_cluster",
+            "den_launcher_v100_gpu_cluster",
             "k80_gpu_cluster",
             "a10g_gpu_cluster",
             "static_cpu_pwd_cluster",