diff --git a/keyboards/keyboardio/atreus/keymaps/via/keymap.c b/keyboards/keyboardio/atreus/keymaps/via/keymap.c
new file mode 100644
index 00000000000..c649ec1c654
--- /dev/null
+++ b/keyboards/keyboardio/atreus/keymaps/via/keymap.c
@@ -0,0 +1,53 @@
+// Copyright (C) 2022, Hao Xiang Liew
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT( /* Qwerty */
+    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                      KC_Y,    KC_U,    KC_I,    KC_O,    KC_P    ,
+    KC_A,    KC_S,    KC_D,    KC_F,    KC_G,                      KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN ,
+    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_GRV,  KC_BSLS, KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH ,
+    KC_ESC, KC_TAB, KC_LGUI,  KC_LSFT, KC_BSPC,  KC_LCTL, KC_LALT, KC_SPC,  MO(1),   KC_MINS, KC_QUOT, KC_ENT ),
+
+  /*
+   *  !       @     up     {    }        ||     pgup    7     8     9    *
+   *  #     left   down  right  $        ||     pgdn    4     5     6    +
+   *  [       ]      (     )    &        ||       `     1     2     3    \
+   * lower  insert super shift bksp ctrl || alt space   fn    .     0    =
+   */
+  [1] = LAYOUT( /* [> RAISE <] */
+    KC_EXLM, KC_AT,   KC_UP,   KC_DLR,  KC_PERC,                  KC_PGUP, KC_7,    KC_8,   KC_9, KC_BSPC,
+    KC_LPRN, KC_LEFT, KC_DOWN, KC_RGHT, KC_RPRN,                  KC_PGDN, KC_4,    KC_5,   KC_6, KC_BSLS,
+    KC_LBRC, KC_RBRC, KC_HASH, KC_LCBR, KC_RCBR, KC_CIRC, KC_AMPR,KC_ASTR, KC_1,    KC_2,   KC_3, KC_PLUS,
+    TG(2),   KC_INS,  KC_LGUI, KC_LSFT, KC_BSPC, KC_LCTL, KC_LALT,KC_SPC,  KC_TRNS, KC_DOT, KC_0, KC_EQL ),
+  /*
+   * insert home   up  end   pgup       ||      up     F7    F8    F9   F10
+   *  del   left  down right pgdn       ||     down    F4    F5    F6   F11
+   *       volup             reset      ||             F1    F2    F3   F12
+   *       voldn  super shift bksp ctrl || alt space   L0  prtsc scroll pause
+   */
+  [2] = LAYOUT( /* [> LOWER <] */
+    KC_INS,  KC_HOME, KC_UP,   KC_END,  KC_PGUP,                   KC_UP,   KC_F7,   KC_F8,   KC_F9,   KC_F10  ,
+    KC_DEL,  KC_LEFT, KC_DOWN, KC_RGHT, KC_PGDN,                   KC_DOWN, KC_F4,   KC_F5,   KC_F6,   KC_F11  ,
+    KC_NO,   KC_VOLU, KC_NO,   KC_NO,   RESET,   KC_TRNS, KC_TRNS, KC_NO,   KC_F1,   KC_F2,   KC_F3,   KC_F12  ,
+    TO(0),   KC_VOLD, KC_LGUI, KC_LSFT, KC_BSPC, KC_LCTL, KC_LALT, KC_SPC,  TO(0),   KC_PSCR, KC_SLCK, KC_PAUS ),
+
+  [3] = LAYOUT( /* blank */
+    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS ,
+    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS ,
+    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS ,
+    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS )
+};
diff --git a/keyboards/keyboardio/atreus/keymaps/via/rules.mk b/keyboards/keyboardio/atreus/keymaps/via/rules.mk
new file mode 100644
index 00000000000..36b7ba9cbc9
--- /dev/null
+++ b/keyboards/keyboardio/atreus/keymaps/via/rules.mk
@@ -0,0 +1,2 @@
+VIA_ENABLE = yes
+LTO_ENABLE = yes