diff --git a/noita-proxy/Cargo.lock b/noita-proxy/Cargo.lock
index 10daf8e8..94a58eb4 100644
--- a/noita-proxy/Cargo.lock
+++ b/noita-proxy/Cargo.lock
@@ -128,6 +128,12 @@ dependencies = [
  "x11rb",
 ]
 
+[[package]]
+name = "arc-swap"
+version = "1.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69f7f8c3906b62b754cd5326047894316021dcfe5a194c8ea52bdd94934a3457"
+
 [[package]]
 name = "arrayref"
 version = "0.3.7"
@@ -273,6 +279,16 @@ dependencies = [
  "objc2 0.5.1",
 ]
 
+[[package]]
+name = "bstr"
+version = "1.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05efc5cfd9110c8416e471df0e96702d58690178e206e61b7173706673c93706"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.16.0"
@@ -1052,6 +1068,97 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "98de4bbd547a563b716d8dfa9aad1cb19bfab00f4fa09a6a4ed21dbcf44ce9c4"
 
+[[package]]
+name = "fluent"
+version = "0.16.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bb74634707bebd0ce645a981148e8fb8c7bccd4c33c652aeffd28bf2f96d555a"
+dependencies = [
+ "fluent-bundle",
+ "unic-langid",
+]
+
+[[package]]
+name = "fluent-bundle"
+version = "0.15.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7fe0a21ee80050c678013f82edf4b705fe2f26f1f9877593d13198612503f493"
+dependencies = [
+ "fluent-langneg",
+ "fluent-syntax",
+ "intl-memoizer",
+ "intl_pluralrules",
+ "rustc-hash",
+ "self_cell 0.10.3",
+ "smallvec",
+ "unic-langid",
+]
+
+[[package]]
+name = "fluent-langneg"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c4ad0989667548f06ccd0e306ed56b61bd4d35458d54df5ec7587c0e8ed5e94"
+dependencies = [
+ "unic-langid",
+]
+
+[[package]]
+name = "fluent-syntax"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a530c4694a6a8d528794ee9bbd8ba0122e779629ac908d15ad5a7ae7763a33d"
+dependencies = [
+ "thiserror",
+]
+
+[[package]]
+name = "fluent-template-macros"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77d2bcae1f3ec390c50161fcf130d3228750e9ecf965618584e046d884199b83"
+dependencies = [
+ "flume",
+ "ignore",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "unic-langid",
+]
+
+[[package]]
+name = "fluent-templates"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "197feb1e37209c6b3d29f0754b11fc070890efb2b1d761caac4e5287a200e9db"
+dependencies = [
+ "arc-swap",
+ "fluent",
+ "fluent-bundle",
+ "fluent-langneg",
+ "fluent-syntax",
+ "fluent-template-macros",
+ "flume",
+ "heck",
+ "ignore",
+ "intl-memoizer",
+ "log",
+ "once_cell",
+ "serde_json",
+ "thiserror",
+ "unic-langid",
+]
+
+[[package]]
+name = "flume"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55ac459de2512911e4b674ce33cf20befaba382d05b62b008afc1c8b57cbf181"
+dependencies = [
+ "spin",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -1207,6 +1314,19 @@ dependencies = [
  "xml-rs",
 ]
 
+[[package]]
+name = "globset"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57da3b9b5b85bd66f31093f8c408b90a74431672542466497dcbdfdc02034be1"
+dependencies = [
+ "aho-corasick",
+ "bstr",
+ "log",
+ "regex-automata 0.4.6",
+ "regex-syntax 0.8.3",
+]
+
 [[package]]
 name = "glow"
 version = "0.13.1"
@@ -1309,6 +1429,12 @@ version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
 [[package]]
 name = "hermit-abi"
 version = "0.3.9"
@@ -1450,6 +1576,22 @@ dependencies = [
  "unicode-normalization",
 ]
 
+[[package]]
+name = "ignore"
+version = "0.4.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b46810df39e66e925525d6e38ce1e7f6e1d208f72dc39757880fcb66e2c58af1"
+dependencies = [
+ "crossbeam-deque",
+ "globset",
+ "log",
+ "memchr",
+ "regex-automata 0.4.6",
+ "same-file",
+ "walkdir",
+ "winapi-util",
+]
+
 [[package]]
 name = "image"
 version = "0.24.9"
@@ -1509,6 +1651,25 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "intl-memoizer"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe22e020fce238ae18a6d5d8c502ee76a52a6e880d99477657e6acc30ec57bda"
+dependencies = [
+ "type-map",
+ "unic-langid",
+]
+
+[[package]]
+name = "intl_pluralrules"
+version = "7.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "078ea7b7c29a2b4df841a7f6ac8775ff6074020c6776d48491ce2268e068f972"
+dependencies = [
+ "unic-langid",
+]
+
 [[package]]
 name = "ipnet"
 version = "2.9.0"
@@ -1815,6 +1976,7 @@ dependencies = [
  "eframe",
  "egui-file-dialog",
  "egui_extras",
+ "fluent-templates",
  "image 0.25.1",
  "lz4_flex",
  "poll-promise",
@@ -1831,6 +1993,7 @@ dependencies = [
  "tracing",
  "tracing-subscriber",
  "tungstenite",
+ "unic-langid",
  "zip",
 ]
 
@@ -2230,6 +2393,12 @@ dependencies = [
  "toml_edit",
 ]
 
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.20+deprecated"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc375e1527247fe1a97d8b7156678dfe7c1af2fc075c9a4db3690ecd2a148068"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.81"
@@ -2622,6 +2791,21 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "self_cell"
+version = "0.10.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e14e4d63b804dc0c7ec4a1e52bcb63f02c7ac94476755aa579edac21e01f915d"
+dependencies = [
+ "self_cell 1.0.4",
+]
+
+[[package]]
+name = "self_cell"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d369a96f978623eb3dc28807c4852d6cc617fed53da5d3c400feff1ef34a714a"
+
 [[package]]
 name = "serde"
 version = "1.0.199"
@@ -2790,6 +2974,9 @@ name = "spin"
 version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
+dependencies = [
+ "lock_api",
+]
 
 [[package]]
 name = "static_assertions"
@@ -3013,6 +3200,15 @@ dependencies = [
  "strict-num",
 ]
 
+[[package]]
+name = "tinystr"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9117f5d4db391c1cf6927e7bea3db74b9a1c1add8f7eda9ffd5364f40f57b82f"
+dependencies = [
+ "displaydoc",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
@@ -3205,12 +3401,65 @@ dependencies = [
  "utf-8",
 ]
 
+[[package]]
+name = "type-map"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "deb68604048ff8fa93347f02441e4487594adc20bb8a084f9e564d2b827a0a9f"
+dependencies = [
+ "rustc-hash",
+]
+
 [[package]]
 name = "typenum"
 version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
+[[package]]
+name = "unic-langid"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23dd9d1e72a73b25e07123a80776aae3e7b0ec461ef94f9151eed6ec88005a44"
+dependencies = [
+ "unic-langid-impl",
+ "unic-langid-macros",
+]
+
+[[package]]
+name = "unic-langid-impl"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a5422c1f65949306c99240b81de9f3f15929f5a8bfe05bb44b034cc8bf593e5"
+dependencies = [
+ "serde",
+ "tinystr",
+]
+
+[[package]]
+name = "unic-langid-macros"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0da1cd2c042d3c7569a1008806b02039e7a4a2bdf8f8e96bd3c792434a0e275e"
+dependencies = [
+ "proc-macro-hack",
+ "tinystr",
+ "unic-langid-impl",
+ "unic-langid-macros-impl",
+]
+
+[[package]]
+name = "unic-langid-macros-impl"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ed7f4237ba393424195053097c1516bd4590dc82b84f2f97c5c69e12704555b"
+dependencies = [
+ "proc-macro-hack",
+ "quote",
+ "syn",
+ "unic-langid-impl",
+]
+
 [[package]]
 name = "unicase"
 version = "2.7.0"
diff --git a/noita-proxy/Cargo.toml b/noita-proxy/Cargo.toml
index 723306f9..903e69d7 100644
--- a/noita-proxy/Cargo.toml
+++ b/noita-proxy/Cargo.toml
@@ -34,6 +34,8 @@ egui_extras = { version = "*", features = ["all_loaders"] }
 bytemuck = { version = "1.16.0", features = ["derive"] }
 bincode = "1.3.3"
 rustc-hash = "1.1.0"
+fluent-templates = "0.9.4"
+unic-langid = { version = "0.9.5", features = ["serde"] }
 
 [profile.dev]
 opt-level = 1
diff --git a/noita-proxy/assets/lang/en-US/main.ftl b/noita-proxy/assets/lang/en-US/main.ftl
new file mode 100644
index 00000000..a8e43f58
--- /dev/null
+++ b/noita-proxy/assets/lang/en-US/main.ftl
@@ -0,0 +1,15 @@
+connect_steam = Connect using steam
+connect_steam_create = Create lobby
+connect_steam_connect = Connect to lobby in clipboard
+
+connect_ip = Connect using ip
+
+connect_settings = Game settings
+connect_settings_debug = Debug settings
+connect_settings_debug_en = Debug/cheat mode
+connect_settings_debug_fixed_seed = Use fixed seed
+connect_settings_wsv = World sync version to use:
+
+lang_picker = Choose a language
+
+button_confirm = Confirm
diff --git a/noita-proxy/assets/lang/ru-RU/main.ftl b/noita-proxy/assets/lang/ru-RU/main.ftl
new file mode 100644
index 00000000..7a46e3b7
--- /dev/null
+++ b/noita-proxy/assets/lang/ru-RU/main.ftl
@@ -0,0 +1,15 @@
+connect_steam = Подключение по Steam
+connect_steam_create = Создать лобби
+connect_steam_connect = Подключиться к лобби в буфере обмена
+
+connect_ip = Подключение по IP
+
+connect_settings = Настройки игры
+connect_settings_debug = Настройки разработчика
+connect_settings_debug_en = Подрубить читы
+connect_settings_debug_fixed_seed = Фиксированный сид мира
+connect_settings_wsv = Версия синхронизатора мира:
+
+lang_picker = Выберите язык
+
+button_confirm = Подтвердить
diff --git a/noita-proxy/src/lang.rs b/noita-proxy/src/lang.rs
new file mode 100644
index 00000000..798dd466
--- /dev/null
+++ b/noita-proxy/src/lang.rs
@@ -0,0 +1,51 @@
+use std::sync::RwLock;
+
+use fluent_templates::{LanguageIdentifier, Loader};
+use unic_langid::langid;
+
+fluent_templates::static_loader! {
+    // Declare our `StaticLoader` named `LOCALES`.
+    static LOCALES = {
+        // The directory of localisations and fluent resources.
+        locales: "./assets/lang",
+        // The language to falback on if something is not present.
+        fallback_language: "en-US",
+    };
+}
+
+// static LANG: LanguageIdentifier = langid!("en-US");
+static LANG: RwLock<LanguageIdentifier> = RwLock::new(langid!("ru-RU"));
+
+pub struct LangDesc {
+    name: &'static str,
+    id: LanguageIdentifier,
+}
+
+impl LangDesc {
+    const fn new(name: &'static str, id: LanguageIdentifier) -> Self {
+        Self { name, id }
+    }
+
+    pub fn name(&self) -> &'static str {
+        self.name
+    }
+
+    pub fn id(&self) -> LanguageIdentifier {
+        self.id.clone()
+    }
+}
+
+pub static LANGS: [LangDesc; 2] = [
+    LangDesc::new("English", langid!("en-US")),
+    LangDesc::new("Русский", langid!("ru-RU")),
+];
+
+pub fn set_current_locale(lang_id: LanguageIdentifier) {
+    *LANG.write().unwrap() = lang_id;
+}
+
+pub fn tr(text_id: &str) -> String {
+    LOCALES
+        .try_lookup(&LANG.read().unwrap(), text_id)
+        .unwrap_or_else(|| text_id.to_string())
+}
diff --git a/noita-proxy/src/lib.rs b/noita-proxy/src/lib.rs
index 81fdf756..6540dfe7 100644
--- a/noita-proxy/src/lib.rs
+++ b/noita-proxy/src/lib.rs
@@ -8,6 +8,7 @@ use std::{
 use bitcode::{Decode, Encode};
 use clipboard::{ClipboardContext, ClipboardProvider};
 use eframe::egui::{self, Align2, Color32, InnerResponse, Margin, RichText, TextureOptions, Ui};
+use lang::{set_current_locale, tr, LANGS};
 use mod_manager::{Modmanager, ModmanagerSettings};
 use net::{omni::PeerVariant, NetManagerInit};
 use self_update::SelfUpdateManager;
@@ -15,7 +16,9 @@ use serde::{Deserialize, Serialize};
 use steamworks::{LobbyId, SteamAPIInitError};
 use tangled::Peer;
 use tracing::info;
+use unic_langid::LanguageIdentifier;
 
+pub mod lang;
 pub mod messages;
 mod mod_manager;
 pub mod net;
@@ -36,6 +39,7 @@ enum AppState {
     Netman { netman: Arc<net::NetManager> },
     Error { message: String },
     SelfUpdate,
+    LangPick,
 }
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -46,6 +50,7 @@ struct AppSavedState {
     nickname: Option<String>,
     times_started: u32,
     world_sync_version: u32,
+    lang_id: Option<LanguageIdentifier>,
 }
 
 impl Default for AppSavedState {
@@ -57,6 +62,7 @@ impl Default for AppSavedState {
             nickname: None,
             times_started: 0,
             world_sync_version: 1,
+            lang_id: None,
         }
     }
 }
@@ -102,10 +108,18 @@ impl App {
             .and_then(|storage| eframe::get_value(storage, MODMANAGER))
             .unwrap_or_default();
         saved_state.times_started += 1;
+
+        let state = if let Some(lang_id) = &saved_state.lang_id {
+            set_current_locale(lang_id.clone());
+            AppState::ModManager
+        } else {
+            AppState::LangPick
+        };
+
         egui_extras::install_image_loaders(&cc.egui_ctx);
         info!("Creating the app...");
         Self {
-            state: AppState::ModManager,
+            state,
             modmanager: Modmanager::default(),
             steam_state: steam_helper::SteamState::new(),
             saved_state,
@@ -196,20 +210,39 @@ impl App {
 
             let item_spacing = ui.spacing().item_spacing.x;
             let rect = ui.max_rect();
+            let (rect, right_b_panel) =
+                rect.split_left_right_at_x(rect.right() - (50.0 + item_spacing));
             let (settings_rect, right) = rect.split_left_right_at_fraction(0.5);
             let (steam_connect_rect, ip_connect_rect) = right.split_top_bottom_at_fraction(0.5);
+
+            ui.allocate_ui_at_rect(right_b_panel.shrink(item_spacing), |ui| {
+                filled_group(ui, |ui| {
+                    ui.set_min_size(ui.available_size());
+
+                    if ui.button("EN").clicked() {
+                        self.state = AppState::LangPick;
+                    }
+                })
+            });
+
             ui.allocate_ui_at_rect(settings_rect.shrink(item_spacing), |ui| {
                 filled_group(ui, |ui| {
                     ui.set_min_size(ui.available_size());
-                    heading_with_underline(ui, "Game settings");
+                    heading_with_underline(ui, tr("connect_settings"));
 
-                    ui.label("Debug settings");
-                    ui.checkbox(&mut self.saved_state.debug_mode, "Debug/cheat mode");
-                    ui.checkbox(&mut self.saved_state.use_constant_seed, "Use fixed seed");
+                    ui.label(tr("connect_settings_debug"));
+                    ui.checkbox(
+                        &mut self.saved_state.debug_mode,
+                        tr("connect_settings_debug_en"),
+                    );
+                    ui.checkbox(
+                        &mut self.saved_state.use_constant_seed,
+                        tr("connect_settings_debug_fixed_seed"),
+                    );
 
                     ui.add_space(20.0);
 
-                    ui.label("World sync version to use:");
+                    ui.label(tr("connect_settings_wsv"));
                     ui.horizontal(|ui| {
                         ui.radio_value(&mut self.saved_state.world_sync_version, 1, "v1");
                         ui.radio_value(
@@ -224,14 +257,14 @@ impl App {
                 filled_group(ui, |ui| {
                     ui.set_min_size(ui.available_size());
 
-                    heading_with_underline(ui, "Connect using steam");
+                    heading_with_underline(ui, tr("connect_steam"));
 
                     match &self.steam_state {
                         Ok(_) => {
-                            if ui.button("Create lobby").clicked() {
+                            if ui.button(tr("connect_steam_create")).clicked() {
                                 self.start_steam_host();
                             }
-                            if ui.button("Connect to lobby in clipboard").clicked() {
+                            if ui.button(tr("connect_steam_connect")).clicked() {
                                 let id = ClipboardProvider::new()
                                     .and_then(|mut ctx: ClipboardContext| ctx.get_contents());
                                 match id {
@@ -256,7 +289,7 @@ impl App {
                 filled_group(ui, |ui| {
                     ui.set_min_size(ui.available_size());
 
-                    heading_with_underline(ui, "Connect by ip");
+                    heading_with_underline(ui, tr("connect_ip"));
 
                     ui.label("Note: steam networking is more reliable. Use it, if possible.");
                     if ui.button("Host").clicked() {
@@ -387,6 +420,25 @@ impl eframe::App for App {
                         self.self_update.self_update(ui);
                     });
             }
+            AppState::LangPick => {
+                egui::Window::new(tr("lang_picker"))
+                    .auto_sized()
+                    .anchor(Align2::CENTER_CENTER, [0.0, 0.0])
+                    .show(ctx, |ui| {
+                        for lang in &LANGS {
+                            ui.set_max_width(200.0);
+                            ui.vertical_centered_justified(|ui| {
+                                if ui.button(lang.name()).clicked() {
+                                    self.saved_state.lang_id = Some(lang.id());
+                                    set_current_locale(lang.id())
+                                }
+                            });
+                        }
+                        if ui.button(tr("button_confirm")).clicked() {
+                            self.state = AppState::ModManager;
+                        }
+                    });
+            }
         };
     }
 
diff --git a/noita-proxy/src/main.rs b/noita-proxy/src/main.rs
index d58ed742..be55dca9 100644
--- a/noita-proxy/src/main.rs
+++ b/noita-proxy/src/main.rs
@@ -15,6 +15,7 @@ fn main() -> Result<(), eframe::Error> {
         )
         .finish();
     tracing::subscriber::set_global_default(my_subscriber).expect("setting tracing default failed");
+
     let icon = image::load_from_memory(include_bytes!("../assets/icon.png"))
         .unwrap()
         .to_rgba8();