diff --git a/Cargo.lock b/Cargo.lock
index 9bba7d0..b9e5075 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -184,7 +184,7 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chaudloader"
-version = "0.9.2"
+version = "0.10.0"
 dependencies = [
  "anyhow",
  "byteorder",
@@ -203,6 +203,7 @@ dependencies = [
  "proc-macro2",
  "pulldown-cmark",
  "retour",
+ "run_script",
  "semver",
  "serde",
  "serde_plain",
@@ -403,6 +404,12 @@ dependencies = [
  "windows-sys 0.45.0",
 ]
 
+[[package]]
+name = "dunce"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56ce8c6da7551ec6c462cbaf3bfbc75131ebbfa1c944aeaa9dab51ca1c5f0c3b"
+
 [[package]]
 name = "dxgi-shim"
 version = "0.1.0"
@@ -508,6 +515,16 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "fsio"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dad0ce30be0cc441b325c5d705c8b613a0ca0d92b6a8953d41bd236dc09a36d0"
+dependencies = [
+ "dunce",
+ "rand",
+]
+
 [[package]]
 name = "generator"
 version = "0.7.4"
@@ -996,6 +1013,12 @@ version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ac9a59f73473f1b8d852421e59e64809f025994837ef743615c6d0c5b305160"
 
+[[package]]
+name = "ppv-lite86"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
+
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"
@@ -1050,11 +1073,35 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
 [[package]]
 name = "rand_core"
 version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+dependencies = [
+ "getrandom",
+]
 
 [[package]]
 name = "redox_syscall"
@@ -1130,6 +1177,15 @@ dependencies = [
  "slice-pool",
 ]
 
+[[package]]
+name = "run_script"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "829f98fdc58d78989dd9af83be28bc15c94a7d77f9ecdb54abbbc0b1829ba9c7"
+dependencies = [
+ "fsio",
+]
+
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"
diff --git a/README.md b/README.md
index 13d5cff..3214b54 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,8 @@ chaudloader has some development options which can be enabled to aid with mod de
 
 -   `developer_mode` (type: boolean, default: `false`): Enables developer mode. Required to be `true` in order to use any of the other development options.
 -   `enable_hook_guards` (type: boolean, default: `false`): Enables hook guards.
+-   `stage0_commands` (type: string array, default: `[]`): List of shell commands to run during stage0 before the game's entry point. If any of the commands returns a nonzero exit code, loading is aborted. The following variables can be used in commands:
+    -   `%PID%`: Replaced by the game's process ID.
 
 ## For developers
 
diff --git a/chaudloader/Cargo.toml b/chaudloader/Cargo.toml
index 5bd0e56..049f0ea 100644
--- a/chaudloader/Cargo.toml
+++ b/chaudloader/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "chaudloader"
-version = "0.9.2"
+version = "0.10.0"
 edition = "2021"
 
 [lib]
@@ -33,3 +33,4 @@ maud = "0.25"
 url = "2"
 opener = "0.6"
 proc-macro2 = "^1.0.60"
+run_script = "0.10.1"
diff --git a/chaudloader/src/config.rs b/chaudloader/src/config.rs
index dda9e76..a19ba94 100644
--- a/chaudloader/src/config.rs
+++ b/chaudloader/src/config.rs
@@ -15,6 +15,7 @@ pub struct Config {
     // Secret options
     pub developer_mode: Option<bool>,
     pub enable_hook_guards: Option<bool>, // requires developer_mode
+    pub stage0_commands: Option<std::collections::BTreeSet<String>>, // requires developer_mode
 }
 
 const CONFIG_FILE_NAME: &str = "chaudloader.toml";
diff --git a/chaudloader/src/hooks/stage0.rs b/chaudloader/src/hooks/stage0.rs
index 25c8ec2..c1b793f 100644
--- a/chaudloader/src/hooks/stage0.rs
+++ b/chaudloader/src/hooks/stage0.rs
@@ -224,6 +224,18 @@ pub unsafe fn install() -> Result<(), anyhow::Error> {
 
     let config = config::load()?;
 
+    if config.developer_mode == Some(true) {
+        for cmd in config.stage0_commands.iter().flatten() {
+            let (code, _, _) = run_script::run_script!(
+                cmd
+                    .replace("%PID%", &std::process::id().to_string())
+                )?;
+            if code != 0 {
+                log::error!("Command {cmd} exited with code {code}");
+            }
+        }
+    }
+
     unsafe {
         // Hook GetProcAddress to avoid ntdll.dll hooks being installed
         GetProcAddressForCaller