diff --git a/Makefile b/Makefile
index 34542a9..e7e50e7 100644
--- a/Makefile
+++ b/Makefile
@@ -15,20 +15,20 @@ SRCS := $(wildcard $(SRC_DIR)/**)
 .PHONY: clean full-clean tarball tarball-standalone web web-standalone
 
 # "Standalone" version. It includes an index.html to serve as-is
-web-standalone: out/asteroids.js out/asteroids_bg.wasm out/index.html
+web-standalone: out/asteroids.js out/asteroids_bg.wasm.gz out/index.html
 
 # "Bundle-able" version. It has a page, but no index.html. Consumers are
 # expected to provide their own index.html and link to this page.
-web: out/asteroids.js out/asteroids_bg.wasm out/asteroids.html
+web: out/asteroids.js out/asteroids_bg.wasm.gz out/asteroids.html
 
 tarball: asteroids_web_root.tar
 
 tarball_standalone: asteroids_web_root_standalone.tar
 
-asteroids_web_root.tar: out/asteroids.js out/asteroids_bg.wasm out/asteroids.html
+asteroids_web_root.tar: out/asteroids.js out/asteroids_bg.wasm.gz out/asteroids.html
 	tar -caf $@ $^
 
-asteroids_web_root_standalone.tar: out/asteroids.js out/asteroids_bg.wasm out/index.html
+asteroids_web_root_standalone.tar: out/asteroids.js out/asteroids_bg.wasm.gz out/index.html
 	tar -caf $@ $^
 
 target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm: $(SRCS) Cargo.lock Cargo.toml
@@ -39,8 +39,9 @@ out:
 
 # Both the JS and WASM files are generated by the wasm-bindgen call, so both
 # get to be on the target half of this recipe.
-out/asteroids.js out/asteroids_bg.wasm &: target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm | out
+out/asteroids.js out/asteroids_bg.wasm.gz &: target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm | out
 	wasm-bindgen --no-typescript --target web --out-dir ./out/ --out-name asteroids target/$(CARGO_TARGET)/$(CARGO_PROFILE)/asteroids.wasm
+	gzip -9 -f out/asteroids_bg.wasm
 
 # Copies the index page to the output dir.
 out/index.html: www/index.html
@@ -67,5 +68,5 @@ full-clean: clean
 install: web
 	install -dm0755 $(DESTDIR)
 	install -m0644 out/asteroids.js $(DESTDIR)/
-	install -m0644 out/asteroids_bg.wasm $(DESTDIR)/
+	install -m0644 out/asteroids_bg.wasm.gz $(DESTDIR)/
 	install -m0644 out/asteroids.html $(DESTDIR)/
diff --git a/www/index.html b/www/index.html
index 79c865c..13f243b 100644
--- a/www/index.html
+++ b/www/index.html
@@ -98,7 +98,11 @@
   <script type="module">
     import init from './asteroids.js'
 
-    init().catch((error) => {
+    let compressed = await fetch("./asteroids_bg.wasm.gz")
+    let wasm_stream = compressed.body.pipeThrough(new DecompressionStream("gzip"))
+    let blob = await new Response(wasm_stream).blob();
+
+    init(await blob.arrayBuffer()).catch((error) => {
       if (!error.message.startsWith("Using exceptions for control flow, don't mind me. This isn't actually an error!")) {
         throw error;
       }