💡 With examples
Secret rule ideas
Need a new rule for Green Glass Door or “I'm going on a picnic”? Here are 46 rules from the Green Glass Door app, each with examples of what gets packed and what's left behind.
How to read the examples
Green items get packed, red ones are left behind. In spelling rules, CAPITALS mark the letters that make the rule.
What makes a good secret rule?
- Easy to judge, hard to guess. The host should know instantly; guessers should need a few rounds.
- Misleading on the surface. The best rules look like they're about meaning but are about spelling — or the other way round.
- Works for any item. Players can say anything, so the rule should give a clear yes or no to every word.
All 24 rules from the two free packs are below, plus a taste of every PRO pack. Jump to a pack: 🚪 Glass Door · 🧺 Categories · 🔤 Letters · 🌲 Nature · 🎭 Tricks · 🔥 Hardcore · 🧸 Kids · 👀 Here & now · 🎒 Backpack · 🧩 Wordplay · 🔗 Chain · ⏰ Time · 👻 Invisible
Glass Door
FreeSecret spelling rules: coffee in, tea out. 10 rules — all of them below.
Two same letters in a row
coFFEEbaLLkiTTenteacupThe classic Green Glass Door: coffee goes through, tea doesn't.
Has OO or EE
spOOnchEEsebOOkbaLLtentEnds with two same letters
baLLglaSScoffEEkettletentSame letter twice, with a gap
TenTbAnAnAkEttlEspOOnmapSide by side doesn't count: spoon is a no.
No letter T
coffeemapspoonTeaTenTbooTsStarts with A, E, I, O or U
AppleEggUmbrellabananatentHas a J, Q, X or Z
piZZaaXeJackettentsockEnds with Y
candYkeYbatterYcandlekettleHas a W
toWelWindoWWatchtentcup4 letters or fewer
map (3)sock (4)tent (4)towel (5)knife (5)
Categories
FreeWhat things are and what they're like. 14 rules — all of them below.
Food or drink
beansappleteaforkmugMakes light
flashlightcandlematchesbatteriesmirrorRound like a ball
ballorangepeaplateeggSoft things
pillowmarshmallowsocksapplepotHas legs
chairdogspidersnakecarHas a lid or cap
markerjarbottlecupbowlMostly metal
spoonkeyfrying panwooden spoonplastic forkComes from an animal
egghoneywool sockscowcotton socksSharp or pointy
knifeforkcactusspoonpillowYou can pour it
watersandsugarrocktoothpasteYou eat or drink with it
forkmugstrawapplekettleShaped like a ring
bagelbracelethula hoopcoinballSee-through
windowglasseswatermirrorplateHas a handle
mugbucketumbrellabowlplate
Letters
PRORules about letters and spelling. 9 rules.
Starts with the first letter of your name
Mia → mapTom → tentTom → mapKim → cupStarts with the last letter of the last item said
map → potpot → tentmap → mugrope → potFirst item: anything. Count the last item said, even a no.
7 more rules in the app.
Nature
PROWoods, water and everything alive. 13 rules.
Comes from a tree
paperapplematchescottonstrawberryHas a shell
snaileggwalnutslugbanana
11 more rules in the app.
Tricks
PROIt's not what you say, it's how. 15 rules.
Say "please" before the item
please, tenttent, pleasethanks, tentWhisper the item
🤫 roperope
13 more rules in the app.
Hardcore
PROSneaky rules for experts. 9 rules.
No letter E
mapcompassflashlightknifesleeping bagRound and you can eat it
meatballgrapetomatoballbanana
7 more rules in the app.
Kids
PROSimple rules for little ones. 12 rules.
Has wheels
bikebusskateboardboatsledClap before the item
👏 ballball 👏ball
10 more rules in the app.
Here & now
PROYou and everything around you. 9 rules.
Something you can see now
lamp in viewcup on tablelamp in the halla whaleSame color as your top
red → cherrywhite → milkred → red cupred → milkred → snow
7 more rules in the app.
Backpack
PROPockets, zippers and chargers. 9 rules.
Needs a battery or a plug
flashlighthair dryerspeakercandlecompassHas a zipper
tentpencil casesleeping bagblankettowel
7 more rules in the app.
Wordplay
PROHidden words, sounds and spelling tricks. 14 rules.
Hides a number
tentphonemoneynetsocksHides an animal
bowlpantstapetentleash
12 more rules in the app.
Chain
PROEvery item hangs on the one before. 9 rules.
Rhymes with the last item said
sock → clockcap → mapsock → sackcup → mugFirst item: anything. Count the last item said, even a no.
Bigger than the last item said
cup → tenttent → busbus → spoontent → cupFirst item: anything. Count the last item said, even a no.
7 more rules in the app.
Time
PROWhen you use it and how long it lasts. 9 rules.
You use it every day
toothbrushphonekeystentpassportGets used up
soaptoothpastecandlespoontent
7 more rules in the app.
Invisible
PROThings that won't fit in a bag. 9 rules.
A feeling
joyfearhomesicknesssmilepartyBody feelings like hunger or cold count too.
Something money can't buy
sunshinea hugsleepbreadticket
7 more rules in the app.