diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Revision history for swarm
 
+## **0.1.1.0** - 2022-10-14
+
+A couple new features and an important bugfix for the Hackage release.
+
+- Update to `hsnoise-0.0.3`, fixing some world generation bugs that
+  only showed up in the Hackage
+  release. ([#746](https://github.com/swarm-game/swarm/pull/746))
+- New "blank" creative scenario
+  ([#741](https://github.com/swarm-game/swarm/pull/741))
+- REPL improvements
+    - `Ctrl-D` at an empty REPL prompt now triggers a quit
+      ([#743](https://github.com/swarm-game/swarm/pull/743))
+    - The REPL panel now persists in showing the type of the most
+      recently evaluated expression ([#733](https://github.com/swarm-game/swarm/pull/733))
+
 ## **0.1.0.1** - 2022-10-06
 
 A bugfix release for a few minor bugs that plagued the first release:
diff --git a/data/scenarios/00-ORDER.txt b/data/scenarios/00-ORDER.txt
--- a/data/scenarios/00-ORDER.txt
+++ b/data/scenarios/00-ORDER.txt
@@ -1,5 +1,6 @@
 classic.yaml
 creative.yaml
+blank.yaml
 Tutorials
 Challenges
 Fun
diff --git a/data/scenarios/blank.yaml b/data/scenarios/blank.yaml
new file mode 100644
--- /dev/null
+++ b/data/scenarios/blank.yaml
@@ -0,0 +1,14 @@
+version: 1
+name: Blank world
+description: No constraints and no obstacles!  Do whatever you want, in this empty void!
+creative: true
+robots:
+  - name: base
+    loc: [0,0]
+    dir: [0,1]
+    heavy: true
+    display:
+      char: Ω
+      attr: robot
+world:
+  default: [grass]
diff --git a/src/Swarm/Game/State.hs b/src/Swarm/Game/State.hs
--- a/src/Swarm/Game/State.hs
+++ b/src/Swarm/Game/State.hs
@@ -62,6 +62,7 @@
   needsRedraw,
   replStatus,
   replWorking,
+  replActiveType,
   messageQueue,
   lastSeenMessageTime,
   focusedRobotID,
@@ -176,7 +177,8 @@
 -- | A data type to represent the current status of the REPL.
 data REPLStatus
   = -- | The REPL is not doing anything actively at the moment.
-    REPLDone
+    --   We persist the last value and its type though.
+    REPLDone (Maybe (Polytype, Value))
   | -- | A command entered at the REPL is currently being run.  The
     --   'Polytype' represents the type of the expression that was
     --   entered.  The @Maybe Value@ starts out as @Nothing@ and gets
@@ -496,9 +498,17 @@
 replWorking :: Getter GameState Bool
 replWorking = to (\s -> matchesWorking $ s ^. replStatus)
  where
-  matchesWorking REPLDone = False
+  matchesWorking (REPLDone _) = False
   matchesWorking (REPLWorking _ _) = True
 
+-- | Either the type of the command being executed, or of the last command
+replActiveType :: Getter REPLStatus (Maybe Polytype)
+replActiveType = to getter
+ where
+  getter (REPLDone (Just (typ, _))) = Just typ
+  getter (REPLWorking typ _) = Just typ
+  getter _ = Nothing
+
 -- | Get the notification list of messages from the point of view of focused robot.
 messageNotifications :: Getter GameState (Notifications LogEntry)
 messageNotifications = to getNotif
@@ -703,7 +713,7 @@
       , _viewCenterRule = VCRobot 0
       , _viewCenter = V2 0 0
       , _needsRedraw = False
-      , _replStatus = REPLDone
+      , _replStatus = REPLDone Nothing
       , _messageQueue = Empty
       , _lastSeenMessageTime = -1
       , _focusedRobotID = 0
@@ -753,8 +763,8 @@
       , -- When starting base with the run flag, REPL status must be set to working,
         -- otherwise the store of definition cells is not saved (see #333)
         _replStatus = case toRun of
-          Nothing -> REPLDone
-          Just _ -> REPLWorking (Forall [] (TyCmd TyUnit)) Nothing
+          Nothing -> REPLDone Nothing
+          Just _ -> REPLWorking PolyUnit Nothing
       , _messageQueue = Empty
       , _focusedRobotID = baseID
       , _ticks = 0
diff --git a/src/Swarm/Language/LSP.hs b/src/Swarm/Language/LSP.hs
--- a/src/Swarm/Language/LSP.hs
+++ b/src/Swarm/Language/LSP.hs
@@ -14,6 +14,7 @@
 import Control.Lens (to, (^.))
 import Control.Monad (void)
 import Control.Monad.IO.Class
+import Data.Foldable (forM_)
 import Data.Maybe (fromMaybe)
 import Data.Text (Text)
 import Data.Text.IO qualified as Text
@@ -71,9 +72,7 @@
           Left e -> Just $ showTypeErrorPos content e
         Left e -> Just $ showErrorPos e
   -- debug $ "-> " <> from (show err)
-  case err of
-    Nothing -> pure ()
-    Just e -> sendDiagnostic e
+  forM_ err sendDiagnostic
  where
   sendDiagnostic :: ((Int, Int), (Int, Int), Text) -> LspM () ()
   sendDiagnostic ((startLine, startCol), (endLine, endCol), msg) = do
diff --git a/src/Swarm/Language/Typecheck.hs b/src/Swarm/Language/Typecheck.hs
--- a/src/Swarm/Language/Typecheck.hs
+++ b/src/Swarm/Language/Typecheck.hs
@@ -34,7 +34,7 @@
   skolemize,
   generalize,
 
-  -- * Type inferen
+  -- * Type inference
   inferTop,
   inferModule,
   infer,
diff --git a/src/Swarm/Language/Types.hs b/src/Swarm/Language/Types.hs
--- a/src/Swarm/Language/Types.hs
+++ b/src/Swarm/Language/Types.hs
@@ -58,6 +58,7 @@
   -- * Polytypes
   Poly (..),
   Polytype,
+  pattern PolyUnit,
   UPolytype,
 
   -- * Contexts
@@ -366,6 +367,9 @@
 
 pattern UTyDelay :: UType -> UType
 pattern UTyDelay ty1 = UTerm (TyDelayF ty1)
+
+pattern PolyUnit :: Polytype
+pattern PolyUnit = Forall [] (TyCmd TyUnit)
 
 -- Derive aeson instances for type serialization
 deriving instance Generic Type
diff --git a/src/Swarm/TUI/Controller.hs b/src/Swarm/TUI/Controller.hs
--- a/src/Swarm/TUI/Controller.hs
+++ b/src/Swarm/TUI/Controller.hs
@@ -583,7 +583,7 @@
   replUpdated <- case g ^. replStatus of
     -- It did, and the result was the unit value.  Just reset replStatus.
     REPLWorking _ (Just VUnit) -> do
-      gameState . replStatus .= REPLDone
+      gameState . replStatus .= REPLDone (Just (PolyUnit, VUnit))
       pure True
 
     -- It did, and returned some other value.  Pretty-print the
@@ -591,7 +591,7 @@
     REPLWorking pty (Just v) -> do
       let out = T.intercalate " " [into (prettyValue v), ":", prettyText (stripCmd pty)]
       uiState . uiReplHistory %= addREPLItem (REPLOutput out)
-      gameState . replStatus .= REPLDone
+      gameState . replStatus .= REPLDone (Just (pty, v))
       pure True
 
     -- Otherwise, do nothing.
@@ -747,6 +747,11 @@
       CmdPrompt {} -> continueWithoutRedraw
       SearchPrompt _ _ ->
         uiState %= resetWithREPLForm (mkReplForm $ mkCmdPrompt "")
+  ControlKey 'd' -> do
+    text <- use $ uiState . uiReplForm . to formState . promptTextL
+    if text == T.empty
+      then toggleModal QuitModal
+      else continueWithoutRedraw
   ev -> do
     replForm <- use $ uiState . uiReplForm
     f' <- nestEventM' replForm (handleFormEvent ev)
@@ -782,12 +787,16 @@
 validateREPLForm :: AppState -> AppState
 validateREPLForm s =
   case replPrompt of
+    CmdPrompt "" _ ->
+      let theType = s ^. gameState . replStatus . replActiveType
+       in s & uiState . uiReplType .~ theType
     CmdPrompt uinput _ ->
       let result = processTerm' topTypeCtx topReqCtx uinput
           theType = case result of
             Right (Just (ProcessedTerm _ (Module ty _) _ _)) -> Just ty
             _ -> Nothing
-       in s & uiState . uiReplForm %~ validate result
+       in s
+            & uiState . uiReplForm %~ validate result
             & uiState . uiReplType .~ theType
     SearchPrompt _ _ -> s
  where
@@ -908,7 +917,7 @@
 makeEntity :: Entity -> EventM Name AppState ()
 makeEntity e = do
   s <- get
-  let mkTy = Forall [] $ TyCmd TyUnit
+  let mkTy = PolyUnit
       mkProg = TApp (TConst Make) (TText (e ^. entityName))
       mkPT = ProcessedTerm mkProg (Module mkTy empty) (R.singletonCap CMake) empty
       topStore =
diff --git a/src/Swarm/TUI/Model.hs b/src/Swarm/TUI/Model.hs
--- a/src/Swarm/TUI/Model.hs
+++ b/src/Swarm/TUI/Model.hs
@@ -904,7 +904,6 @@
 resetWithREPLForm :: Form REPLPrompt AppEvent Name -> UIState -> UIState
 resetWithREPLForm f =
   (uiReplForm .~ f)
-    . (uiReplType .~ Nothing)
     . (uiError .~ Nothing)
 
 ------------------------------------------------------------
diff --git a/swarm.cabal b/swarm.cabal
--- a/swarm.cabal
+++ b/swarm.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               swarm
-version:            0.1.0.1
+version:            0.1.1.0
 synopsis:           2D resource gathering game with programmable robots
 
 description:        Swarm is a 2D programming and resource gathering
@@ -140,7 +140,7 @@
                       fused-effects-lens            >= 1.2.0.1 && < 1.3,
                       githash                       >= 0.1.6 && < 0.2,
                       hashable                      >= 1.3.4 && < 1.5,
-                      hsnoise                       >= 0.0.2 && < 0.1,
+                      hsnoise                       >= 0.0.3 && < 0.1,
                       http-client                   >= 0.7 && < 0.8,
                       http-client-tls               >= 0.3 && < 0.4,
                       http-types                    >= 0.12 && < 0.13,