diff --git a/dev/tests/chunks.lua b/dev/tests/chunks.lua
index dbc001ba..dfc2fced 100644
--- a/dev/tests/chunks.lua
+++ b/dev/tests/chunks.lua
@@ -1,8 +1,8 @@
-test.set_setting("chunks.load-distance", 3)
-test.set_setting("chunks.load-speed", 1)
+app.set_setting("chunks.load-distance", 3)
+app.set_setting("chunks.load-speed", 1)
 
-test.reconfig_packs({"base"}, {})
-test.new_world("demo", "2019", "core:default")
+app.reconfig_packs({"base"}, {})
+app.new_world("demo", "2019", "core:default")
 
 local pid1 = player.create("Xerxes")
 assert(player.get_name(pid1) == "Xerxes")
@@ -21,7 +21,7 @@ for i=1,25 do
     end
     player.set_pos(pid1, math.random() * 100 - 50, 100, math.random() * 100 - 50)
     player.set_pos(pid2, math.random() * 200 - 100, 100, math.random() * 200 - 100)
-    test.tick()
+    app.tick()
 end
 
-test.close_world(true)
+app.close_world(true)
diff --git a/dev/tests/world.lua b/dev/tests/world.lua
index 3e7353e3..32f56ad2 100644
--- a/dev/tests/world.lua
+++ b/dev/tests/world.lua
@@ -1,23 +1,23 @@
 -- Create/close/open/close world
 
 -- Open
-test.new_world("demo", "2019", "core:default")
+app.new_world("demo", "2019", "core:default")
 assert(world.is_open())
 assert(world.get_generator() == "core:default")
-test.sleep(1)
+app.sleep(1)
 assert(world.get_total_time() > 0.0)
 print(world.get_total_time())
 
 -- Close
-test.close_world(true)
+app.close_world(true)
 assert(not world.is_open())
 
 -- Reopen
-test.open_world("demo")
+app.open_world("demo")
 assert(world.is_open())
 assert(world.get_total_time() > 0.0)
 assert(world.get_seed() == 2019)
-test.tick()
+app.tick()
 
 -- Close
-test.close_world(true)
+app.close_world(true)
diff --git a/res/scripts/stdlib.lua b/res/scripts/stdlib.lua
index 0a49ccd1..26f04582 100644
--- a/res/scripts/stdlib.lua
+++ b/res/scripts/stdlib.lua
@@ -22,21 +22,21 @@ function tb_frame_tostring(frame)
     return s
 end
 
-if test then
-    test.sleep = sleep
-    test.name = __VC_TEST_NAME
-    test.new_world = core.new_world
-    test.open_world = core.open_world
-    test.close_world = core.close_world
-    test.reopen_world = core.reopen_world
-    test.delete_world = core.delete_world
-    test.reconfig_packs = core.reconfig_packs
-    test.set_setting = core.set_setting
-    test.tick = coroutine.yield
+if app then
+    app.sleep = sleep
+    app.script = __VC_SCRIPT_NAME
+    app.new_world = core.new_world
+    app.open_world = core.open_world
+    app.close_world = core.close_world
+    app.reopen_world = core.reopen_world
+    app.delete_world = core.delete_world
+    app.reconfig_packs = core.reconfig_packs
+    app.set_setting = core.set_setting
+    app.tick = coroutine.yield
 
-    function test.quit()
+    function app.quit()
         local tb = debug.get_traceback(1)
-        local s = "test.quit() traceback:"
+        local s = "app.quit() traceback:"
         for i, frame in ipairs(tb) do
             s = s .. "\n\t"..tb_frame_tostring(frame)
         end
@@ -45,11 +45,11 @@ if test then
         coroutine.yield()
     end
 
-    function test.sleep_until(predicate, max_ticks)
+    function app.sleep_until(predicate, max_ticks)
         max_ticks = max_ticks or 1e9
         local ticks = 0
         while ticks < max_ticks and not predicate() do
-            test.tick()
+            app.tick()
         end
         if ticks == max_ticks then
             error("max ticks exceed")
diff --git a/src/logic/scripting/lua/libs/api_lua.hpp b/src/logic/scripting/lua/libs/api_lua.hpp
index 23f3db66..48ea6da1 100644
--- a/src/logic/scripting/lua/libs/api_lua.hpp
+++ b/src/logic/scripting/lua/libs/api_lua.hpp
@@ -37,7 +37,7 @@ extern const luaL_Reg packlib[];
 extern const luaL_Reg particleslib[]; // gfx.particles
 extern const luaL_Reg playerlib[];
 extern const luaL_Reg quatlib[];
-extern const luaL_Reg testlib[];
+extern const luaL_Reg applib[];
 extern const luaL_Reg text3dlib[]; // gfx.text3d
 extern const luaL_Reg timelib[];
 extern const luaL_Reg tomllib[];
diff --git a/src/logic/scripting/lua/libs/libtest.cpp b/src/logic/scripting/lua/libs/libapp.cpp
similarity index 60%
rename from src/logic/scripting/lua/libs/libtest.cpp
rename to src/logic/scripting/lua/libs/libapp.cpp
index 034a72fb..fa3b0453 100644
--- a/src/logic/scripting/lua/libs/libtest.cpp
+++ b/src/logic/scripting/lua/libs/libapp.cpp
@@ -1,5 +1,5 @@
 #include "api_lua.hpp"
 
-const luaL_Reg testlib[] = {
+const luaL_Reg applib[] = {
     {NULL, NULL}
 };
diff --git a/src/logic/scripting/lua/lua_engine.cpp b/src/logic/scripting/lua/lua_engine.cpp
index b34b87a0..dca6ec69 100644
--- a/src/logic/scripting/lua/lua_engine.cpp
+++ b/src/logic/scripting/lua/lua_engine.cpp
@@ -58,10 +58,10 @@ static void create_libs(State* L, StateType stateType) {
     openlib(L, "vec3", vec3lib);
     openlib(L, "vec4", vec4lib);
 
-    if (stateType == StateType::TEST) {
-        openlib(L, "test", testlib);
+    if (stateType == StateType::SCRIPT) {
+        openlib(L, "app", applib);
     }
-    if (stateType == StateType::BASE || stateType == StateType::TEST) {
+    if (stateType == StateType::BASE || stateType == StateType::SCRIPT) {
         openlib(L, "gui", guilib);
         openlib(L, "input", inputlib);
         openlib(L, "inventory", inventorylib);
@@ -119,10 +119,10 @@ void lua::initialize(const EnginePaths& paths, const CoreParameters& params) {
     logger.info() << LUAJIT_VERSION;
 
     main_thread = create_state(
-        paths, params.headless ? StateType::TEST : StateType::BASE
+        paths, params.headless ? StateType::SCRIPT : StateType::BASE
     );
     lua::pushstring(main_thread, params.scriptFile.stem().u8string());
-    lua::setglobal(main_thread, "__VC_TEST_NAME");
+    lua::setglobal(main_thread, "__VC_SCRIPT_NAME");
 }
 
 void lua::finalize() {
diff --git a/src/logic/scripting/lua/lua_engine.hpp b/src/logic/scripting/lua/lua_engine.hpp
index a70f5948..aee93035 100644
--- a/src/logic/scripting/lua/lua_engine.hpp
+++ b/src/logic/scripting/lua/lua_engine.hpp
@@ -13,7 +13,7 @@ struct CoreParameters;
 namespace lua {
     enum class StateType {
         BASE,
-        TEST,
+        SCRIPT,
         GENERATOR,
     };