diff --git a/theseus/src/api/auth.rs b/theseus/src/api/auth.rs
index 389d62c9b..362b8cd26 100644
--- a/theseus/src/api/auth.rs
+++ b/theseus/src/api/auth.rs
@@ -57,6 +57,7 @@ pub async fn authenticate(
     Ok(credentials)
 }
 
+
 /// Refresh some credentials using Hydra, if needed
 /// This is the primary desired way to get credentials, as it will also refresh them.
 #[tracing::instrument]
diff --git a/theseus/src/api/profile.rs b/theseus/src/api/profile.rs
index a1b635ae5..bf22233af 100644
--- a/theseus/src/api/profile.rs
+++ b/theseus/src/api/profile.rs
@@ -1,5 +1,9 @@
 //! Theseus profile management interface
-use crate::{launcher::download, state::MinecraftChild};
+use crate::{
+    auth::{self, refresh},
+    launcher::download,
+    state::MinecraftChild,
+};
 pub use crate::{
     state::{JavaSettings, Profile},
     State,
@@ -91,10 +95,33 @@ pub async fn sync(path: &Path) -> crate::Result<()> {
     }
 }
 
-/// Run Minecraft using a profile
+/// Run Minecraft using a profile and the default credentials, logged in credentials,
+/// failing with an error if no credentials are available
+#[tracing::instrument(skip_all)]
+pub async fn run(path: &Path) -> crate::Result<Arc<RwLock<MinecraftChild>>> {
+    let state = State::get().await?;
+
+    // Get default account and refresh credentials (preferred way to log in)
+    let default_account = state.settings.read().await.default_user;
+    let credentials = if let Some(default_account) = default_account {
+        refresh(default_account, false).await?
+    } else {
+        // If no default account, try to use a logged in account
+        let users = auth::users().await?;
+        let last_account = users.iter().next();
+        if let Some(last_account) = last_account {
+            refresh(last_account.id, false).await?
+        } else {
+            return Err(crate::ErrorKind::NoCredentialsError.as_error());
+        }
+    };
+    run_credentials(path, &credentials).await
+}
+
+/// Run Minecraft using a profile, and credentials for authentication
 /// Returns Arc pointer to RwLock to Child
 #[tracing::instrument(skip_all)]
-pub async fn run(
+pub async fn run_credentials(
     path: &Path,
     credentials: &crate::auth::Credentials,
 ) -> crate::Result<Arc<RwLock<MinecraftChild>>> {
diff --git a/theseus/src/error.rs b/theseus/src/error.rs
index 004610235..8d71dbcbc 100644
--- a/theseus/src/error.rs
+++ b/theseus/src/error.rs
@@ -76,6 +76,9 @@ pub enum ErrorKind {
     #[error("Could not create profile: {0}")]
     ProfileCreationError(#[from] profile_create::ProfileCreationError),
 
+    #[error("User is not logged in, no credentials available!")]
+    NoCredentialsError,
+
     #[error("JRE error: {0}")]
     JREError(#[from] crate::util::jre::JREError),
 
diff --git a/theseus/src/launcher/auth.rs b/theseus/src/launcher/auth.rs
index a1d5ac3e8..ae7c557d1 100644
--- a/theseus/src/launcher/auth.rs
+++ b/theseus/src/launcher/auth.rs
@@ -47,7 +47,7 @@ struct ProfileInfoJSON {
 }
 
 // Login information
-#[derive(Encode, Decode, Serialize, Deserialize)]
+#[derive(Encode, Decode, Serialize, Deserialize, Clone, Debug)]
 pub struct Credentials {
     #[bincode(with_serde)]
     pub id: uuid::Uuid,
diff --git a/theseus_cli/src/subcommands/profile.rs b/theseus_cli/src/subcommands/profile.rs
index f6f6515ef..a46084bd6 100644
--- a/theseus_cli/src/subcommands/profile.rs
+++ b/theseus_cli/src/subcommands/profile.rs
@@ -332,7 +332,7 @@ impl ProfileRun {
             .await?;
         let credentials = auth::refresh(id, false).await?;
 
-        let proc_lock = profile::run(&path, &credentials).await?;
+        let proc_lock = profile::run_credentials(&path, &credentials).await?;
         let mut proc = proc_lock.write().await;
         process::wait_for(&mut proc).await?;
 
diff --git a/theseus_gui/src-tauri/src/api/profile.rs b/theseus_gui/src-tauri/src/api/profile.rs
index dd31c93a8..353bcf474 100644
--- a/theseus_gui/src-tauri/src/api/profile.rs
+++ b/theseus_gui/src-tauri/src/api/profile.rs
@@ -27,13 +27,13 @@ pub async fn profile_list(
     Ok(res)
 }
 
-// Run Minecraft using a profile
+// Run minecraft using a profile using the default credentials
 // Returns a u32 representing the PID, which can be used to poll
 // for the actual Child in the state.
-// invoke('profile_run')
+// invoke('profile_run', path)
 #[tauri::command]
-pub async fn profile_run(path: &Path, credentials: Credentials) -> Result<u32> {
-    let proc_lock = profile::run(path, &credentials).await?;
+pub async fn profile_run(path: &Path) -> Result<u32> {
+    let proc_lock = profile::run(path).await?;
     let pid = proc_lock.read().await.child.id().ok_or_else(|| {
         theseus::Error::from(theseus::ErrorKind::LauncherError(
             "Process failed to stay open.".to_string(),
@@ -42,14 +42,38 @@ pub async fn profile_run(path: &Path, credentials: Credentials) -> Result<u32> {
     Ok(pid)
 }
 
-// Run Minecraft using a profile, and wait for the result
-// invoke('profile_run_wait', path, credentials)
+// Run Minecraft using a profile using the default credentials, and wait for the result
+// invoke('profile_run_wait', path)
 #[tauri::command]
-pub async fn profile_run_wait(
-    path: &Path,
-    credentials: Credentials,
-) -> Result<()> {
-    let proc_lock = profile::run(path, &credentials).await?;
+pub async fn profile_run_wait(path: &Path) -> Result<()> {
+    let proc_lock = profile::run(path).await?;
+    let mut proc = proc_lock.write().await;
+    Ok(process::wait_for(&mut proc).await?)
+}
+
+// Run Minecraft using a profile using chosen credentials
+// Returns a u32 representing the PID, which can be used to poll
+// for the actual Child in the state.
+// invoke('profile_run_credentials', {path, credentials})')
+#[tauri::command]
+pub async fn profile_run_credentials(path: &Path, credentials: Credentials) -> Result<u32> {
+    let proc_lock = profile::run_credentials(path, &credentials).await?;
+    let pid = proc_lock.read().await.child.id().ok_or_else(|| {
+        theseus::Error::from(theseus::ErrorKind::LauncherError(
+            "Process failed to stay open.".to_string(),
+        ))
+    })?;
+    Ok(pid)
+}
+
+// Run Minecraft using a profile using the chosen credentials, and wait for the result
+// invoke('profile_run_wait', {path, credentials)
+#[tauri::command]
+pub async fn profile_run_wait_credentials(
+    path: &Path,
+    credentials: Credentials,
+) -> Result<()> {
+    let proc_lock = profile::run_credentials(path, &credentials).await?;
     let mut proc = proc_lock.write().await;
     Ok(process::wait_for(&mut proc).await?)
 }
diff --git a/theseus_gui/src-tauri/src/main.rs b/theseus_gui/src-tauri/src/main.rs
index 78847df5f..a97634a82 100644
--- a/theseus_gui/src-tauri/src/main.rs
+++ b/theseus_gui/src-tauri/src/main.rs
@@ -25,6 +25,8 @@ fn main() {
             api::profile::profile_list,
             api::profile::profile_run,
             api::profile::profile_run_wait,
+            api::profile::profile_run_credentials,
+            api::profile::profile_run_wait_credentials,
             api::pack::pack_install_version_id,
             api::pack::pack_install_file,
             api::auth::auth_authenticate_begin_flow,
diff --git a/theseus_playground/src/main.rs b/theseus_playground/src/main.rs
index 03bda7763..4f13e8439 100644
--- a/theseus_playground/src/main.rs
+++ b/theseus_playground/src/main.rs
@@ -64,39 +64,16 @@ async fn main() -> theseus::Result<()> {
     .await?;
     State::sync().await?;
 
-    // Attempt to get the default user, if it exists, and refresh their credentials
-    let default_user_uuid = {
-        let settings = st.settings.read().await;
-        settings.default_user
-    };
-    let credentials = if let Some(uuid) = default_user_uuid {
-        println!("Attempting to refresh existing authentication.");
-        auth::refresh(uuid, false).await
-    } else {
-        println!("Freshly authenticating.");
-        authenticate_run().await
-    };
 
-    // Check attempt to get Credentials
-    // If successful, run the profile and store the RwLock to the process
-    let proc_lock = match credentials {
-        Ok(credentials) => {
-            println!("Preparing to run Minecraft.");
-            profile::run(&canonicalize(&profile_path)?, &credentials).await
-        }
-        Err(e) => {
-            // If Hydra could not be accessed, for testing, attempt to load credentials from disk and do the same
-            println!("Could not authenticate: {}.\nAttempting stored authentication.",e);
-            let users = auth::users().await.expect(
-                "Could not access any stored users- state was dropped.",
-            );
-            let credentials = users
-                .first()
-                .expect("Hydra failed, and no stored users were found.");
-            println!("Preparing to run Minecraft.");
-            profile::run(&canonicalize(&profile_path)?, credentials).await
-        }
-    }?;
+
+    // Attempt to run game
+    if auth::users().await?.len() == 0 {
+        println!("No users found, authenticating.");
+        authenticate_run().await?; // could take credentials from here direct, but also deposited in state users
+    }
+
+    // Run a profile, running minecraft and store the RwLock to the process
+    let proc_lock = profile::run(&canonicalize(&profile_path)?).await?;
 
     let pid = proc_lock
         .read()