diff --git a/packages/i18n/strings/en.json b/packages/i18n/strings/en.json
index 99121582f..0467943f8 100644
--- a/packages/i18n/strings/en.json
+++ b/packages/i18n/strings/en.json
@@ -193,6 +193,10 @@
   },
 
   "tanks": {
+    "loadout": {
+      "modules": "Modules"
+    },
+
     "search": {
       "placeholder": "Search tanks..."
     }
diff --git a/packages/website-ue/public/api/tanks/modules/1.webp b/packages/website-ue/public/api/tanks/modules/1.webp
new file mode 100644
index 000000000..996684d04
Binary files /dev/null and b/packages/website-ue/public/api/tanks/modules/1.webp differ
diff --git a/packages/website-ue/public/api/tanks/modules/2.webp b/packages/website-ue/public/api/tanks/modules/2.webp
new file mode 100644
index 000000000..ed7357d2a
Binary files /dev/null and b/packages/website-ue/public/api/tanks/modules/2.webp differ
diff --git a/packages/website-ue/public/api/tanks/modules/3.webp b/packages/website-ue/public/api/tanks/modules/3.webp
new file mode 100644
index 000000000..b1c1e4f1f
Binary files /dev/null and b/packages/website-ue/public/api/tanks/modules/3.webp differ
diff --git a/packages/website-ue/public/api/tanks/modules/4.webp b/packages/website-ue/public/api/tanks/modules/4.webp
new file mode 100644
index 000000000..19ee3fa6b
Binary files /dev/null and b/packages/website-ue/public/api/tanks/modules/4.webp differ
diff --git a/packages/website-ue/public/api/tanks/modules/5.webp b/packages/website-ue/public/api/tanks/modules/5.webp
new file mode 100644
index 000000000..7d5e3a5d4
Binary files /dev/null and b/packages/website-ue/public/api/tanks/modules/5.webp differ
diff --git a/packages/website-ue/src/components/BaseStyles.astro b/packages/website-ue/src/components/BaseStyles.astro
index aa8caf737..85a03c492 100644
--- a/packages/website-ue/src/components/BaseStyles.astro
+++ b/packages/website-ue/src/components/BaseStyles.astro
@@ -90,3 +90,23 @@ import "@fontsource-variable/roboto-flex";
     --tank-card-min-width: 8rem;
   }
 </style>
+
+<style is:global>
+  .composable-radius {
+    &[data-radius="1"] {
+      border-radius: var(--space-3);
+    }
+
+    &[data-radius="2"] {
+      border-radius: var(--space-4);
+    }
+
+    &[data-radius="3"] {
+      border-radius: var(--space-5);
+    }
+
+    &[data-radius="max"] {
+      border-radius: var(--max-size);
+    }
+  }
+</style>
diff --git a/packages/website-ue/src/components/Button/index.module.css b/packages/website-ue/src/components/Button/index.module.css
index 2411bb869..90f26d18b 100644
--- a/packages/website-ue/src/components/Button/index.module.css
+++ b/packages/website-ue/src/components/Button/index.module.css
@@ -7,7 +7,6 @@
   border-radius: var(--max-size);
   padding: var(--space-3) var(--space-4);
 
-  background-color: var(--accent-9);
   border: none;
 
   font-family: var(--font-family-regular);
@@ -23,4 +22,14 @@
   &[data-light-text="true"] {
     color: var(--white-a12);
   }
+
+  &[data-variant="solid"] {
+    background-color: var(--accent-8);
+  }
+
+  &[data-variant="surface"] {
+    background-color: var(--accent-3);
+
+    outline: var(--space-1) solid var(--accent-4);
+  }
 }
diff --git a/packages/website-ue/src/components/Button/index.tsx b/packages/website-ue/src/components/Button/index.tsx
index 8d185bcf8..e4e159b46 100644
--- a/packages/website-ue/src/components/Button/index.tsx
+++ b/packages/website-ue/src/components/Button/index.tsx
@@ -5,7 +5,8 @@ import styles from "./index.module.css";
 
 export interface ButtonProps extends ComponentProps<"button"> {
   color?: Color;
-  variant?: "solid";
+  radius?: `${1 | 2 | 3}` | "max";
+  variant?: "solid" | "surface";
 }
 
 export const LIGHT_TEXT_COLORS = new Set<Color>([
@@ -28,14 +29,16 @@ export function Button({
   color,
   variant = "solid",
   style,
+  radius = "max",
   ...props
 }: ButtonProps) {
   return (
     <button
-      className={classNames(styles.button, className)}
+      className={classNames("composable-radius", styles.button, className)}
       data-color={color}
       data-variant={variant}
       data-light-text={variant === "solid"}
+      data-radius={radius}
       style={{
         backgroundColor: color ? `var(--${color}-9)` : undefined,
         ...style,
diff --git a/packages/website-ue/src/components/IconButton/index.module.css b/packages/website-ue/src/components/IconButton/index.module.css
new file mode 100644
index 000000000..6c32e585f
--- /dev/null
+++ b/packages/website-ue/src/components/IconButton/index.module.css
@@ -0,0 +1,7 @@
+.icon-button {
+  padding: var(--space-3);
+
+  aspect-ratio: 1 / 1;
+
+  font-size: 2rem;
+}
diff --git a/packages/website-ue/src/components/IconButton/index.tsx b/packages/website-ue/src/components/IconButton/index.tsx
new file mode 100644
index 000000000..4f15c83ea
--- /dev/null
+++ b/packages/website-ue/src/components/IconButton/index.tsx
@@ -0,0 +1,18 @@
+import { classNames } from "../../core/ui/classNames";
+import type { Color } from "../../core/ui/color";
+import { Button, type ButtonProps } from "../Button";
+import styles from "./index.module.css";
+
+export interface IconButtonProps extends ButtonProps {
+  color?: Color;
+  variant?: "solid";
+}
+
+export function IconButton({ className, ...props }: ButtonProps) {
+  return (
+    <Button
+      className={classNames(className, styles["icon-button"])}
+      {...props}
+    />
+  );
+}
diff --git a/packages/website-ue/src/components/TankopediaLoadout/index.module.css b/packages/website-ue/src/components/TankopediaLoadout/index.module.css
new file mode 100644
index 000000000..e1566c71b
--- /dev/null
+++ b/packages/website-ue/src/components/TankopediaLoadout/index.module.css
@@ -0,0 +1,20 @@
+.lines {
+  display: flex;
+
+  gap: var(--space-3);
+
+  .line {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+
+    gap: var(--space-2);
+
+    .stage {
+      img {
+        width: 1em;
+        height: 1em;
+      }
+    }
+  }
+}
diff --git a/packages/website-ue/src/components/TankopediaLoadout/index.tsx b/packages/website-ue/src/components/TankopediaLoadout/index.tsx
new file mode 100644
index 000000000..899e9d3d6
--- /dev/null
+++ b/packages/website-ue/src/components/TankopediaLoadout/index.tsx
@@ -0,0 +1,110 @@
+import type { UpgradeLine } from "@blitzkit/closed/protos/game/proto/legacy/blitz_static_tank_upgrade_line";
+import { CaretDownIcon } from "@radix-ui/react-icons";
+import { api } from "../../core/api/dynamic";
+import { useAwait } from "../../hooks/useAwait";
+import { useStrings } from "../../hooks/useStrings";
+import { Tankopedia } from "../../stores/tankopedia";
+import { Heading } from "../Heading";
+import { IconButton } from "../IconButton";
+import { Section } from "../Section";
+import styles from "./index.module.css";
+
+export function TankopediaLoadout() {
+  const strings = useStrings();
+
+  const id = Tankopedia.use((state) => state.protagonist.id);
+  const tank = useAwait(() => api.tank(id), `tank-${id}`);
+
+  return (
+    <Section>
+      <Heading size="3">{strings.tanks.loadout.modules}</Heading>
+
+      <div className={styles.lines}>
+        {tank.tank!.upgrade_lines.map((line) => (
+          <Line line={line} />
+        ))}
+      </div>
+    </Section>
+  );
+}
+
+interface LineProps {
+  line: UpgradeLine;
+}
+
+function Line({ line }: LineProps) {
+  const upgrades = Tankopedia.use((state) => state.protagonist.upgrades);
+  const id = Tankopedia.use((state) => state.protagonist.id);
+  const tank = useAwait(() => api.tank(id), `tank-${id}`);
+
+  return (
+    <div className={styles.line}>
+      {line.stages.map((stage, index) => {
+        const isSelected = upgrades[line.name] === index;
+
+        return (
+          <>
+            {index !== 0 && <CaretDownIcon width="1em" height="1em" />}
+
+            <IconButton
+              variant={isSelected ? "solid" : "surface"}
+              radius="1"
+              className={styles.stage}
+              onClick={() => {
+                Tankopedia.mutate((draft) => {
+                  draft.protagonist.upgrades[line.name] = index;
+
+                  for (const required of stage.required_upgrades) {
+                    for (const line of tank.tank!.upgrade_lines) {
+                      let i = 0;
+
+                      for (const stage of line.stages) {
+                        if (stage.tech_name === required) {
+                          draft.protagonist.upgrades[line.name] = Math.max(
+                            draft.protagonist.upgrades[line.name],
+                            i,
+                          );
+                        }
+
+                        i++;
+                      }
+                    }
+                  }
+
+                  for (const line of tank.tank!.upgrade_lines) {
+                    let i = draft.protagonist.upgrades[line.name];
+
+                    while (i > 0) {
+                      const currentStage = line.stages[i];
+                      const valid = currentStage.required_upgrades.every(
+                        (required) => {
+                          for (const line of tank.tank!.upgrade_lines) {
+                            const idx = draft.protagonist.upgrades[line.name];
+
+                            if (line.stages[idx]?.tech_name === required) {
+                              return true;
+                            }
+                          }
+
+                          return false;
+                        },
+                      );
+
+                      if (valid) break;
+
+                      i--;
+                    }
+
+                    draft.protagonist.upgrades[line.name] = i;
+                  }
+                });
+              }}
+            >
+              <img src={`/api/tanks/modules/${stage.stage_type}.webp`} />
+            </IconButton>
+          </>
+        );
+      })}
+    </div>
+  );
+}
diff --git a/packages/website-ue/src/core/api/abstract.ts b/packages/website-ue/src/core/api/abstract.ts
index dea341144..077819a49 100644
--- a/packages/website-ue/src/core/api/abstract.ts
+++ b/packages/website-ue/src/core/api/abstract.ts
@@ -46,7 +46,7 @@ export abstract class AbstractAPI {
     return supported;
   }
 
-  @Cache<[string, string, boolean]>((...args) => args.join("-"))
+  @Cache()
   async groupedGameStrings(locale: string, group: string, prefix: boolean) {
     this.assertLocale(locale);
 
@@ -64,9 +64,7 @@ export abstract class AbstractAPI {
   }
 }
 
-export function Cache<Arguments extends unknown[]>(
-  discriminator: (...args: Arguments) => string = (...args) => args.join("-"),
-) {
+export function Cache<Arguments extends unknown[]>(disableInDev = false) {
   const cache = new WeakMap<object, Map<string, Promise<unknown>>>();
 
   return function (
@@ -77,7 +75,7 @@ export function Cache<Arguments extends unknown[]>(
     const original = descriptor.value;
 
     descriptor.value = function (...args: Arguments) {
-      const key = discriminator(...args);
+      const key = args.join("-");
 
       let thisCache = cache.get(this);
 
@@ -86,7 +84,9 @@ export function Cache<Arguments extends unknown[]>(
         cache.set(this, thisCache);
       }
 
-      if (thisCache.has(key)) {
+      const disabled = disableInDev && import.meta.env.DEV;
+
+      if (thisCache.has(key) && !disabled) {
         return thisCache.get(key);
       }
 
diff --git a/packages/website-ue/src/core/api/server.ts b/packages/website-ue/src/core/api/server.ts
index aa42b91be..70fc7e7e0 100644
--- a/packages/website-ue/src/core/api/server.ts
+++ b/packages/website-ue/src/core/api/server.ts
@@ -186,7 +186,7 @@ export class ServerAPI extends AbstractAPI {
     return tiers;
   }
 
-  @Cache()
+  @Cache(true)
   async strings(locale: string) {
     const localized = (await globbedStrings[
       `../../../../i18n/strings/${locale}.json`
diff --git a/packages/website-ue/src/pages/[...locale]/tanks/[slug]/_index.tsx b/packages/website-ue/src/pages/[...locale]/tanks/[slug]/_index.tsx
index 862b1fb8e..f2a2b55e2 100644
--- a/packages/website-ue/src/pages/[...locale]/tanks/[slug]/_index.tsx
+++ b/packages/website-ue/src/pages/[...locale]/tanks/[slug]/_index.tsx
@@ -1,6 +1,5 @@
-import { Grade } from "@blitzkit/closed/protos/game/proto/legacy/blitz_static_standard_grades_enum";
-import { StageParameters_StageType } from "@blitzkit/closed/protos/game/proto/legacy/blitz_static_tank_upgrade_single_stage";
 import { useMemo } from "react";
+import { TankopediaLoadout } from "../../../../components/TankopediaLoadout";
 import { api } from "../../../../core/api/dynamic";
 import { characteristicsOrder } from "../../../../core/tankopedia/characteristicsOrder";
 import { computeCharacteristics } from "../../../../core/tankopedia/computeCharacteristics";
@@ -48,7 +47,9 @@ function Content() {
 
       <br />
 
-      <h2>upgrades</h2>
+      <TankopediaLoadout />
+
+      {/* <h2>upgrades</h2>
 
       {protagonistTank.tank!.upgrade_lines.map((line) => {
         return (
@@ -145,7 +146,7 @@ function Content() {
             </div>
           </>
         );
-      })}
+      })} */}
 
       <h2>characteristics</h2>