Open Adventure 1.1 - http://www.catb.org/esr/open-adventure/
+> help
+
+I know of places, actions, and things. Most of my vocabulary
+describes places and is used to move you there. To move, try words
+like forest, building, downstream, enter, east, west, north, south,
+up, or down. I know about a few special objects, like a black rod
+hidden in the cave. These objects can be manipulated using some of
+the action words that I know. Usually you will need to give both the
+object and action words (in either order), but sometimes I can infer
+the object from the verb alone. Some objects also imply verbs; in
+particular, "inventory" implies "take inventory", which causes me to
+give you a list of what you're carrying. Some objects have unexpected
+effects; the effects are not always desirable! Usually people having
+trouble moving just need to try a few more words. Usually people
+trying unsuccessfully to manipulate an object are attempting something
+beyond their (or my!) capabilities and should try a completely
+different tack. One point often confusing to beginners is that, when
+there are several ways to go in a certain direction (e.g., if there
+are several holes in a wall), choosing that direction in effect
+chooses one of the ways at random; often, though, by specifying the
+place you want to reach you can guarantee choosing the right path.
+Also, to speed the game you can sometimes move long distances with a
+single word. For example, "building" usually gets you to the building
+from anywhere above ground except when lost in the forest. Also, note
+that cave passages and forest paths turn a lot, so leaving one place
+heading north doesn't guarantee entering the next from the south.
+However (another important point), except when you've used a "long
+distance" word such as "building", there is always a way to go back
+where you just came from unless I warn you to the contrary, even
+though the direction that takes you back might not be the reverse of
+what got you here. Good luck, and have fun!
+
+> info
+
+For a summary of the most recent changes to the game, say "news".
+If you want to end your adventure early, say "quit". To suspend your
+adventure such that you can continue later, say "suspend" (or "pause"
+or "save"). To see how well you're doing, say "score". To get full
+credit for a treasure, you must have left it safely in the building,
+though you get partial credit just for locating it. You lose points
+for getting killed, or for quitting, though the former costs you more.
+There are also points based on how much (if any) of the cave you've
+managed to explore; in particular, there is a large bonus just for
+getting in (to distinguish the beginners from the rest of the pack),
+and there are other ways to determine whether you've been through some
+of the more harrowing sections. If you think you've found all the
+treasures, just keep exploring for a while. If nothing interesting
+happens, you haven't found them all yet. If something interesting
+*DOES* happen (incidentally, there *ARE* ways to hasten things along),
+it means you're getting a bonus and have an opportunity to garner many
+more points in the Master's section. I may occasionally offer hints
+if you seem to be having trouble. If I do, I'll warn you in advance
+how much it will affect your score to accept the hints. Finally, to
+save time, you may specify "brief", which tells me never to repeat the
+full description of a place unless you explicitly ask me to.
+
> eat grate
Don't be ridiculous!
> score
-You have garnered 27 out of a possible 430 points, using 98 turns.
+You have garnered 27 out of a possible 430 points, using 100 turns.
> z
> score
-You have garnered 27 out of a possible 430 points, using 100 turns.
+You have garnered 27 out of a possible 430 points, using 102 turns.
> quit keys
OK
-You scored 27 out of a possible 430, using 102 turns.
+You scored 27 out of a possible 430, using 104 turns.
You are obviously a rank amateur. Better luck next time.