diff --git a/src/runtime-tools/linux/run.sh b/src/runtime-tools/linux/run.sh
index 514a4602c..d224efce6 100755
--- a/src/runtime-tools/linux/run.sh
+++ b/src/runtime-tools/linux/run.sh
@@ -5,6 +5,7 @@
 set -ex
 
 export PATH=$PATH:/onefuzz/bin:/onefuzz/tools/linux:/onefuzz/tools/linux/afl:/onefuzz/tools/linux/radamsa
+export DOTNET_ROOT=/onefuzz/tools/dotnet
 export ONEFUZZ_TOOLS=/onefuzz/tools
 export ONEFUZZ_ROOT=/onefuzz
 export RUST_BACKTRACE=full
diff --git a/src/runtime-tools/linux/setup.sh b/src/runtime-tools/linux/setup.sh
index 37a8089f7..2670a4025 100755
--- a/src/runtime-tools/linux/setup.sh
+++ b/src/runtime-tools/linux/setup.sh
@@ -12,6 +12,8 @@ USER_SETUP="/onefuzz/setup/setup.sh"
 TASK_SETUP="/onefuzz/bin/task-setup.sh"
 MANAGED_SETUP="/onefuzz/bin/managed.sh"
 SCALESET_SETUP="/onefuzz/bin/scaleset-setup.sh"
+DOTNET_VERSION="6.0.300"
+export DOTNET_ROOT=/onefuzz/tools/dotnet
 export ONEFUZZ_ROOT=/onefuzz
 export LLVM_SYMBOLIZER_PATH=/onefuzz/bin/llvm-symbolizer
 
@@ -26,6 +28,7 @@ mkdir -p /onefuzz/setup
 mkdir -p /onefuzz/tools
 mkdir -p /onefuzz/etc
 mkdir -p /onefuzz/instance-specific-setup
+mkdir -p "$DOTNET_ROOT"
 
 echo $1 > /onefuzz/etc/mode
 export PATH=$PATH:/onefuzz/bin:/onefuzz/tools/linux:/onefuzz/tools/linux/afl:/onefuzz/tools/linux/radamsa
@@ -122,6 +125,27 @@ if type apt > /dev/null 2> /dev/null; then
         # Using `llvm-symbolizer` works for clang 8 .. 10.
         sudo ln -f -s $(which llvm-symbolizer-10) $LLVM_SYMBOLIZER_PATH
     fi
+
+    # Install dotnet
+    until sudo apt install -y curl libicu-dev; do
+        echo "apt failed, sleeping 10s then retrying"
+        sleep 10
+    done
+
+    echo "downloading dotnet install"
+    curl --retry 10 -sSL https://dot.net/v1/dotnet-install.sh -o dotnet-install.sh > /dev/null
+    chmod +x dotnet-install.sh
+
+    echo "running dotnet install"
+    . ./dotnet-install.sh --version "$DOTNET_VERSION" --install-dir "$DOTNET_ROOT" 2>&1 | logger -s -i -t 'onefuzz-dotnet-setup'
+    rm dotnet-install.sh
+
+    echo "install dotnet tools"
+    pushd "$DOTNET_ROOT"
+    ./dotnet tool install dotnet-dump --tool-path /onefuzz/tools
+    ./dotnet tool install dotnet-coverage --tool-path /onefuzz/tools
+    ./dotnet tool install dotnet-sos --tool-path /onefuzz/tools
+    popd
 fi
 
 if [ -d /etc/systemd/system ]; then
diff --git a/src/runtime-tools/win64/onefuzz.ps1 b/src/runtime-tools/win64/onefuzz.ps1
index 0ead671f0..3b2d91d46 100644
--- a/src/runtime-tools/win64/onefuzz.ps1
+++ b/src/runtime-tools/win64/onefuzz.ps1
@@ -6,6 +6,10 @@ $env:ONEFUZZ_ROOT = "C:\onefuzz"
 $env:ONEFUZZ_TOOLS = "C:\onefuzz\tools"
 $env:LLVM_SYMBOLIZER_PATH = "llvm-symbolizer"
 $env:RUST_LOG = "info"
+$env:DOTNET_VERSION = "6.0.300"
+# Set a session and machine scoped env var
+$env:DOTNET_ROOT = "c:\onefuzz\tools\dotnet"
+[Environment]::SetEnvironmentVariable("DOTNET_ROOT", $env:DOTNET_ROOT, "Machine")
 
 $logFile = "C:\onefuzz.log"
 function log ($message) {
@@ -168,3 +172,18 @@ function Install-VCRedist {
   Start-Process -FilePath C:\onefuzz\vcredist_x86.exe -ArgumentList "/install /q /norestart" -Wait -WindowStyle Hidden
   log "installing VC Redist: done"
 }
+
+function Install-Dotnet([string]$Version, [string]$InstallDir, [string]$ToolsDir) {
+  log "Installing dotnet to ${InstallDir}"
+  Invoke-WebRequest 'https://dot.net/v1/dotnet-install.ps1' -OutFile 'dotnet-install.ps1'
+  ./dotnet-install.ps1 -Version $Version -InstallDir $InstallDir
+  Remove-Item ./dotnet-install.ps1
+  log "Installing dotnet: done"
+  log "Installing dotnet tools to ${ToolsDir}"
+  Push-Location $InstallDir
+  ./dotnet.exe tool install dotnet-dump --tool-path $ToolsDir
+  ./dotnet.exe tool install dotnet-coverage --tool-path $ToolsDir
+  ./dotnet.exe tool install dotnet-sos --tool-path $ToolsDir
+  Pop-Location
+  log "Installing dotnet tools: done"
+}
diff --git a/src/runtime-tools/win64/setup.ps1 b/src/runtime-tools/win64/setup.ps1
index 9657e5413..163451c0b 100644
--- a/src/runtime-tools/win64/setup.ps1
+++ b/src/runtime-tools/win64/setup.ps1
@@ -69,6 +69,7 @@ function Install-OnefuzzSetup {
   Enable-SSH
   Install-OnBoot
   Install-VCRedist
+  Install-Dotnet -Version $env:DOTNET_VERSION -InstallDir $env:DOTNET_ROOT -ToolsDir $env:ONEFUZZ_TOOLS
   Setup-Silent-Notification
   log "onefuzz: setup done"
 }