diff --git a/.changeset/ninety-schools-fail.md b/.changeset/ninety-schools-fail.md
new file mode 100644
index 000000000..f2a61ce08
--- /dev/null
+++ b/.changeset/ninety-schools-fail.md
@@ -0,0 +1,5 @@
+---
+"@effect-app/prelude": patch
+---
+
+add basic fluent extensions for projects without tsplus
diff --git a/packages/prelude/_src/fluent-extensions-ext.d.ts b/packages/prelude/_src/fluent-extensions-ext.d.ts
new file mode 100644
index 000000000..ad5bb50d0
--- /dev/null
+++ b/packages/prelude/_src/fluent-extensions-ext.d.ts
@@ -0,0 +1,60 @@
+import type { NoInfer } from "effect/Types"
+import type * as Cause from "effect/Cause"
+import type * as Runtime from "effect/Runtime"
+
+// Put the following in the project, where RT is the default runtime context available
+/*
+import type * as Runtime from "effect/Runtime"
+import type * as Fiber from "effect/Fiber"
+declare module "effect/Effect" {
+  export interface Effect<R, E, A> {
+    get runPromise(this: Effect<RT, E, A>): Promise<A>
+    get runSync(this: Effect<RT, E, A>): A
+    runFork<E, A>(this: Effect<RT, E, A>, options?: Runtime.RunForkOptions): Fiber.RuntimeFiber<E, A>
+  }
+}
+*/
+
+declare module "effect/Option" {
+  export interface None<out A> {
+    get value(this: None<A>): A | undefined
+  }
+}
+
+declare module "effect/Effect" {
+  export interface Effect<R, E, A> {
+    andThen<A, R, E, X>(
+      this: Effect<R, E, A>,
+      f: (a: NoInfer<A>) => X,
+    ): [X] extends [Effect<infer R1, infer E1, infer A1>]
+      ? Effect<R | R1, E | E1, A1>
+      : [X] extends [Promise<infer A1>]
+        ? Effect<R, Cause.UnknownException | E, A1>
+        : Effect<R, E, X>
+
+    andThen<A, R, E, X>(
+      this: Effect<R, E, A>,
+      f: X,
+    ): [X] extends [Effect<infer R1, infer E1, infer A1>]
+      ? Effect<R | R1, E | E1, A1>
+      : [X] extends [Promise<infer A1>]
+        ? Effect<R, Cause.UnknownException | E, A1>
+        : Effect<R, E, X>
+    tap<A, R, E, X>(
+      this: Effect<R, E, A>,
+      f: (a: NoInfer<A>) => X,
+    ): [X] extends [Effect<infer R1, infer E1, infer _A1>]
+      ? Effect<R | R1, E | E1, A>
+      : [X] extends [Promise<infer _A1>]
+        ? Effect<R, Cause.UnknownException | E, A>
+        : Effect<R, E, A>
+    tap<A, R, E, X>(
+      this: Effect<R, E, A>,
+      f: X,
+    ): [X] extends [Effect<infer R1, infer E1, infer _A1>]
+      ? Effect<R | R1, E | E1, A>
+      : [X] extends [Promise<infer _A1>]
+        ? Effect<R, Cause.UnknownException | E, A>
+        : Effect<R, E, A>
+  }
+}
diff --git a/packages/prelude/_src/fluent-extensions.ts b/packages/prelude/_src/fluent-extensions.ts
new file mode 100644
index 000000000..1b516a643
--- /dev/null
+++ b/packages/prelude/_src/fluent-extensions.ts
@@ -0,0 +1,42 @@
+import type {} from "./fluent-extensions-ext.js"
+import * as Effect from "effect/Effect"
+import * as RT from "effect/Runtime"
+
+/**
+ * useful in e.g frontend projects that do not use tsplus, but still has the most useful extensions installed.
+ */
+export const installFluentExtensions = <R>(runtime: Runtime<R>) => {
+  const runPromise = RT.runPromise(runtime)
+  const runFork = RT.runFork(runtime)
+  const runSync = RT.runSync(runtime)
+  Object.defineProperty(Object.prototype, "runPromise", {
+    enumerable: false,
+    get() {
+      return runPromise(this)
+    }
+  })
+  Object.defineProperty(Object.prototype, "runFork", {
+    enumerable: false,
+    value(arg: any) {
+      return runFork(this, arg)
+    }
+  })
+  Object.defineProperty(Object.prototype, "runSync", {
+    enumerable: false,
+    get() {
+      return runSync(this)
+    }
+  })
+  Object.defineProperty(Object.prototype, "andThen", {
+    enumerable: false,
+    value(arg: any) {
+      return Effect.andThen(this, arg)
+    }
+  })
+  Object.defineProperty(Object.prototype, "tap", {
+    enumerable: false,
+    value(arg: any) {
+      return Effect.tap(this, arg)
+    }
+  })
+}
diff --git a/packages/prelude/package.json b/packages/prelude/package.json
index 758086791..e72d58aab 100644
--- a/packages/prelude/package.json
+++ b/packages/prelude/package.json
@@ -268,6 +268,26 @@
         "default": "./_cjs/faker.cjs"
       }
     },
+    "./fluent-extensions": {
+      "import": {
+        "types": "./dist/fluent-extensions.d.ts",
+        "default": "./dist/fluent-extensions.js"
+      },
+      "require": {
+        "types": "./dist/fluent-extensions.d.ts",
+        "default": "./_cjs/fluent-extensions.cjs"
+      }
+    },
+    "./fluent-extensions-ext.d": {
+      "import": {
+        "types": "./dist/fluent-extensions-ext.d.d.ts",
+        "default": "./dist/fluent-extensions-ext.d.js"
+      },
+      "require": {
+        "types": "./dist/fluent-extensions-ext.d.d.ts",
+        "default": "./_cjs/fluent-extensions-ext.d.cjs"
+      }
+    },
     "./ids": {
       "import": {
         "types": "./dist/ids.d.ts",