diff --git a/lib/factorioServer/index.spec.js b/lib/factorioServer/index.spec.js
index 1caf2afb..ce62386f 100644
--- a/lib/factorioServer/index.spec.js
+++ b/lib/factorioServer/index.spec.js
@@ -73,6 +73,7 @@ describe("class factorioServer/index.js", ()=>{
 	});
 	describe(".createMap(mapName.zip)", ()=>{
 		it("creates a map file as instanceDirectory/saves/map.zip", async function(){
+			/* istanbul ignore if */ if (process.env.FAST_TEST) this.skip();
 			this.timeout(20000); // these test often takes a lot of time in the map creation step (4500 ms on i3 dev system)
 			let relativePath = path.relative('.', __dirname);
 			let server = new factorioServer({
@@ -91,6 +92,7 @@ describe("class factorioServer/index.js", ()=>{
 			return true;
 		});
 		it("supports custom filenames", async function(){
+			/* istanbul igoner if */ if (process.env.FAST_TEST) this.skip();
 			this.timeout(20000);
 			let relativePath = path.relative('.', __dirname);
 			let server = new factorioServer({
diff --git a/lib/generateSSLcert.spec.js b/lib/generateSSLcert.spec.js
index b8e9306d..6f69efae 100644
--- a/lib/generateSSLcert.spec.js
+++ b/lib/generateSSLcert.spec.js
@@ -6,6 +6,7 @@ var generateSSLcert = require("lib/generateSSLcert.js")
 
 describe("generateSSLcert.js(options)", ()=>{
 	it("Creates a folder with a .crt and .key file in it", async function() {
+		/* istanbul ignore if */ if (process.env.FAST_TEST) this.skip();
 		let certPath = "lib/certTestPlsDelete/cert.crt";
 		let privKeyPath = "lib/certTestPlsDelete/cert.key";
 		assert(!await fs.exists(certPath)); // if it already exsits, the test might pass because of leftover data (which is bad)
diff --git a/package.json b/package.json
index 118ca713..c53760a2 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,9 @@
   "main": "master.js",
   "scripts": {
     "test": "mocha --exit --check-leaks -R spec \"./{,!(node_modules)/**/}*.spec.js\" || true",
+    "fast-test": "FAST_TEST=y mocha --check-leaks --exit -R spec \"./{,!(node_modules)/**/}*.spec.js\" || true",
     "cover": "nyc npm run-script test",
+    "fast-cover": "nyc npm run-script fast-test",
     "ci-cover": "nyc --reporter=lcovonly npm run-script test",
     "start": "echo Run node client.js start [instance] to start slaves && node master.js",
     "install": "node lib/npmPostinstall.js",