Although you cannot play Spy Cards Online without JavaScript enabled, you can still browse the available modes as well as the cards for each mode.

Bug Fables 1.2.1

• Play with the latest revision of Spy Cards!

Bug Fables 1.1.1

• Use an older revision of Spy Cards.

Bug Fables 1.1

• Use an older revision of Spy Cards.

Bug Fables 1.0.5

• Use an older revision of Spy Cards.

Custom Cards

• Create your own cards!

Settings

• Modify preferences!

Termacade

• Play arcade games!

Aphid Festival

• Raise aphids!

Miles Mode91

• A complete rebalancing with tons of extra cards.

• Miles

Kingdoms and Critters65

• The original Expansion Pack. Adds 60 new cards to complement the vanilla cardset, opening up numerous new gameplay options!

• MBI

Midge Hell8

• Reluctantly voted "most balanced game mode 2020"!

• Ben Lubar

Pierce and Defense Expansion189

• A mode that adds an emphasis on defence and pierce, along with various other cards.

• Lazybear

Way of the Win Condition36

• Adds a few win conditions and some other things

• tubegerm

Terrain Expansion12

• An expansion on vanilla with slight rebalancing, but primarily focused on new terrain cards. Each player picks a terrain, and they passively affect both sides of the field all game!

• Miles

Plants VS Zombies36

• Spy Cards but with a totally new set of cards based around the Plants vs. Zombies series!

• Miles

Unstable Overhaul9

• Adds new cards based off medals, areas and NPCs while re-balancing the old cards.

• Bray Gallienne

Shapes5

• -◊-⎔-Shapes.-⎔-◊- "Shapes" adds a late-game "Geometry" tribe where Angles and Edges are played to build Polygons, but only if the Sides can add up exactly. Polygons have an Attack equal to the number of sides, so build more shapes to get even more Attack! -□-Build Better-□- This variant bans vanilla cards to focus on proving who is in better "shape." Sharpen those edges! -△-Extra Edgy-△- This joke is a variant of a joke gamemode. Edges and Edge Dispensers only. You know what you signed up for.

• DoubleZeta

Vanilla Plus36

• A mode that attempts to balance the vanilla spy cards but keeps them as close to the original playstyles as possible

• Digs

Boss Mode91

• The original Boss Mode remade to better fit the modern world of Spy Cards!

• Miles

deck badding3

• deck building, but bad!

• tubegerm

Heart of the Coin9

• You must believe in the heart of the coins. And by that I mean, pray for RNG to be on your side as every single card is luck-based!

• Miles

Hunter's Journal Expansion Pack3

• A slew of additional cards available, one from each entry in the Hunter's Journal, featured in the indie metroidvania Hollow Knight. Notably, this game is also about bugs.

• icandotricks

Dimwitted mode56

• Absolute Unbalance

• Dim The Dimwit

tubular spy-cards8

• a rebalance of vanilla cards that also adds in new cards

• tubgerm

Mix and Match49

• A mode based around cards, especially mini bosses, having various different uses, allowing you to mix and match however you see fit.

• Digs

Hylics15

• Hylics themed conversion of Spy Cards.

• Bray Gallienne

Vanilla+ Boss Mode19

• Battle against "boss" NPCs that have passive effects to make them more difficult to beat.

• Miles (Based on Digs' Vanilla Plus)

Mothfly Hell7

• i like mothflies

• me

Health Cap Calamity12

• HCC is a mode where bosses (and sometimes minibosses) have the ability to raise your health cap! As an example, if Tanjerin were to increase your health cap by 3, you would go from 5 HP to 8 HP! Some cards will be nerfed accordingly, and your health cap can only be raised once by said card, so find that perfect combination of maintaining health and stopping your opponent!

• Peri

RUIGEE mode55

• A feeble attempt to add a "RUIGEE" mode to Spy Cards. Please give feedback.

• Luiginho3

Boss PvP18

• boss vs boss but with player input

• me

Sans Mode4

• Both players have 1HP and you just have a chance of dodging attacks. In other words: pray to RNGesus.

• Miles

Jimmy and the Pulsating Mass21

• Tribute mode to Jimmy and the Pulsating Mass While I avoid spoilers as much as I can I'd advise holding off on playing this mode until playing the game if you want to be able to play it truly spoiler free

• Digs

Bowser's Inspied Cards46

• Themed after the bestiaries of EVERY Mario & Luigi game!

• Deciduous Leif

Vanilla Minus36

• Bugaria has fallen

• Digs

Star-crossed106

• Spy Cards meets Paper Mario! Contains around 180 new cards to master in the Starstruck set, fully compatible with Vanilla and K&C cards.

• MBI

OC Spy Cards11

• Spy-cards using people's OCs from discord (With permission from their creators). Contact Supersmashbg#4631 if you want to get your OCs added in the next version.

• SupersmashBg

Spy Cards Showdown2

• Pokemon Showdown-style tiering and banlists for Spy Cards!

• Miles

Setup Mode7

• 4-D Spy Cards Without Multiverse Time Travel

• Lazybear

Numb and Prevent Numb Expansion9

• The joke is now real

• Digs

Touhou Mode38

• A gamemode based on Touhou Hisoutensoku, one of the fighting game spinoffs of the Touhou series! Featuring weather effects that can change the rules of the game in big and small ways.

• Miles

Berries Mode13

• How ba-a-a-ad can I be? I'm just usin' berries naturally How ba-a-a-ad can I be? I'm just followin' my strategy

• Lazybear

Belcher's Bluff5

• You've received this pamphlet at your request for information on the almighty Order of Om.

• Ben Lubar

Everlasting King9

• Everlasting King

• Everlasting Lazybear

Arbitrary Mode3

• When the arbitrary time limit runs out, something arbitrary happens.

• Ben Lubar

Tanjerin3

• PUSHROCK

• Tanjerin

Puyo Mode2

• This mode is based on the characters from the Puyo Puyo series! WIP, so expect more updates, such as new cards and balance changes every so often!

• Seg & Roffine

GitHub Copilot6

• This game mode is balanced using suggestions from GitHub Copilot.

• Ben Lubar

Slime Rancher17

• Slime Rancher but Spy Cards! This is a still a WIP but I thought I might see how people think of it.

• Dim The Dimwit

All Stars13

• SomeBODY once told me the CARDS were gonna troll me, I ain't the sharpest boss in the deck

• Everyone

Rock Paper Scissors6

• it's rock paper scissors

• me

Luigi Party10

• A celebration of Luigis everywhere.

• MBI

Mario & Bug Fables: The Everlasting Saga9

• Mario and Luigi: Superstar Saga's enemy roster (and some of the character roster) has become a large set of Spy Cards somehow.

• YourAverageBadGamer

Kevin12

• random effects i thought would be neat

• me

Kromer6

• Now's your chance to be a [little sponge]

• Spamton

Meme Mode46

• Beta 0.5.2.1 Welcome to the Internet, have a look around...

• Lazybear

Mothfly Mode23

• not to be confused with mothfly hell

• me

Dr. Nim5

• Can you defeat the ultimate CPU opponent? This CPU is designed to be as near to unbeatable as possible. Go ahead and try, but it'll predict your moves perfectly and counter accordingly.

• Miles (Based on Digs' Vanilla Plus)

Rain World Mode2

• Rain world Mode!

• QitMFan48

Broken Cards8

• adds new definitely balanced cards

• superbird

Polytopia Mode10

• Polytopia Mode you can pick a tribe passive and a normal boss

• QitMFan48

Project V9

• Rebalance that mostly sticks to vanilla cards but overhauls their effects

• Digs

Heroes of Bugaria3

• Vanquish foul enemies while fighting with powerful allies in the Spy Cards expansion Heroes of Bugaria! Use brand-new cards based on brave heroes and loyal friends including the beloved baker Crisbee, the reigning Spy Cards champion Leif, and the ever-present Tanjerin! The expansion has already received bountiful praise from fans!

• Smajet

Win and Prevent Win Expansion15

• Build decks around bonus damage and special win conditions to take down your opponent!

• Miles

Bug Blitz4

• Similar to vanilla, but faster-paced! 1-6TP, 3 max HP, 12 cards per deck! Sudden death on round 15!

• Miles

Zoo Mode10

• Welcome to the Zoo

• Lazybear

Terratech Mode1

• TerraTech Mode still a WiP

• QitMFan48

Bug Mode1

• bug mode: like vanilla, but buggier

• QitMFan48

Butterfly Effect6

• A single change can make all the difference

• Rod Stickbug

BTD66

• Your favorite Monke cards imported from BTD6. Not all cards because there would be too many similar cards or just some effects can't work, but most are here. New updates, new heroes and paragons will be added. Just please take it easy on 0-0-0 Glue he didn't do anything wrong.

• Best BTD Players

Prevent and Prevent Prevent Expansion1

• Description and prevent description

• Digs and Prevent Digs

Stand Battles12

• A character-based JoJo's Bizarre Adventure mode. Pick a stand user, and build a deck using their unique abilities!

• MBI

Kirby Mode45

• First you draw a circle...

• LazyBear

Good Mode17

• Good Mode is a mode that attempts to balance some Vanilla cards, and adds a bunch of its own as well. Almost every Vanilla Boss has been redone while still trying to make them keep their original boss fight. Despite what the modes name would have you believe, this mode is still incredibly unbalanced, and any input on discord is appreciated :D

• Dccd

Yay Z1

• Play the brand new dice game Yay Z! I bet you've never played a game like this before.

• Smajet

Rogue Legacy 2 Mode1

• Cards based on Rogue Legacy 2; Design focused on simplicity. Contains Spoilers.

• Lazybear

Hand Size Insanity1

• What if your hand was small, and you had to make it big?

• Lazybear

Ory's Vanilla Expansion31

• A vanilla expansion toying with some new ideas

• Ory

Bug Fables: The Everlasting Cards64

• A recreation of Bug Fables: The Everlasting Sapling in Spy Cards

• Lord VortAch

Rabbids Mode4

• The Rabbids are on a rampage again! This time however, they are fighting each other, who will come out on top? That's up to you to decide with this new take on Spy Cards!

• TheChampionLion

Vanilla D5

• what if vanilla cards were all at delilah's level

• LazyBear

Terraria Mode39

• Massive thanks to Miles and Lazybear for helping throughout the entire process of making this mode!

• Dccd

Skylanders Mode10

• A Skylander mode

• Lord VortAch

Jumpstart9

• Don't want to deckbuild? Pick two themed half-decks and mash them together!

• MBI

Status and Prevent Status Expansion7

• What if vanilla but Statuses and also like 4 extra cards

• Lazybear

Axolots Expansion3

• my take on an expansion to vanilla

• Dr Axolot

NPC Mode7

• Adding most npcs into spy cards

• Dr Axolot

Vacant Cards3

• Mode based on Vacant Kingdom

• Digs

Deltarune Mode3

• deltarune characters as cards

• Dr Axolot

Smelly Mode25

• Using Bug Fables characters as a base for a reworked card game HP now 12 Wins deal 2 damage, but deal 3 damage if you win by 3 or more ATK More dynamic strategies, Reworked Bosses and Mini-Bosses to feel more impactful and unique, instead of just being tribe bosses and generically good ones

• smellylemon

Vanilla D Boss Mode21

• what if you fought bug fables bosses in spy cards, but vanilla cards were all at delilah's level

• LazyBear

Factions6

• there are 4 factions: abyss for high stat amounts, parasite for high card amounts, crystal for high tp amounts, and sunlight for coming up with counterplays against your opponent

• superbird

Engage Mode5

• Warning: This mode contains READING

• Dccd

Octopath Mode21

• Octopath is a turn based RPG developed by Square Enix.. And my favorite RPG

• Dccd

Spy Cards Party6

• Spy cards with stage hazards turned on.

• MBI

Gimmicks3

• hi

• dim

Prime Mode7

• - Reports have shown the bioform Samus Aran is a card holy fuck

• Dccd

Bowser Jr's Inspied Cards12

• A remake of Bowser's Inspied Cards, once again using only Bowser's Inside Story's bestiary.

• Deciduous Leif

Echoes Mode3

• And though I am gone, just ash in the wind, one life surrendered so yours can begin.

• Dccd

Crit Mode5

• Spy Cards... With crits!

• Dccd

Pikmode5

• A mode containing a card for every enemy in every Pikmin game (even Hey! Pikmin), along with a card for every captain, pikmin, and other things such as Candypop Buds

• Ory

Totally Accurate Spy Cards4

• Totally Accurate Battle Simulator in Spy Cards!

• Fandomtrotter (somerandom)

Coromod2

• Spy Cards, but there's Coromon instead of bugs.

• YourAverageBadGamer

Clash5

• Clash of Clans and Clash Royale but spy cards

• Ory

Undertale29

• Undertale based mode designed around a superboss mechanic

• Digs

Fables of Aether34

• Rivals of aether but as a card game! ... wait a moment

• JustaRandomDud3

Vanilla E5

• what if vanilla cards were all at elk's level

• Miles

Vanilla P5

• in the land of the blind, the one-eyed weevil is primal

• Lazybear

Miles Mode 2.026

• A complete rebalancing with tons of extra cards! Now 200% better than the old version!

• Miles

Radical Spy-Cards4

• A vanilla rebalance, except not really. The same cardpool from the base game, but radically different than you remember. Every single card has a unique role no other card can fill, and a unique reason to be put into a deck.

• Tubegerm

Angry Birds Epic1

• The classic mobile game, Angry Birds Epic, in Spy Cards!

• fandomtrotter (somerandom)

Multiversal Collapse83

• A truly gigantic expansion to Spy Cards featuring cards representative of multiple other games and game franchises, with regular balance patches! Spoiler warning for all included game series, list in Latest Changes

• AbyssalPrincess and HermitTheShark

Awakening Mode13

• Based on the widely adored "Fire Emblem Awakening"

• Dccd

Vanilla Divided5

• What if Spy Cards, but tribes didn't matter?

• Miles

Mass Mode3

• It's worth like four bees

• Dccd

Vanilla Rebalanced9

• My somewhat serious attempt at balancing a bunch of cards in the vanilla set, so that most cards are viable.

• NomiSaltium

Silly Discard Mini-Mode4

• A goofy mode where both players make their opponent draw and discard many cards. Have fun!

• NomiSaltium

Undertale Boss Mode74

• Whoa-oh-oh-oh-oh-oh-oh-oh-oh-oh Story of UNDERTALE!

• Dccd

TTYD Mode6

• A Paper Mario: The Thousand Year Door Mode designed around an Audience mechanic

• Ory

Mega Man32

• A mode based on the Mega Man series, featuring EVERY Robot Master and more!

• AbyssalPrincess27 and NomiSaltium

Blox Cards5

• Builderman just told me how to get 999999 robux!!1

• JustaRandomDud3

Yo Kai Watch Mode12

• Yo-Kai are everywhere, causing you problems, messing up your hair...

• Dccd

Draw and Discard Expansion6

• Vanilla with a max hand size of 7, and an emphasis on drawing and discarding

• Ory

Evil Team Mode3

• An exciting mode based on the Evil Teams from the Pokemon series! Contains spoilers for all mainline Pokemon games from gen 1-9.

• AbyssalPrincess

Vanilla W1

• Gone Fishin' (for worms)

• Lazybear

Super Smash Cards10

• 3 stocks, 7 min, Final Destination. Adding every fighter from Smash Bros to Spy Cards (plus some extras)

• Dr Axolot

Vanilla S10

• Basically vanilla-+

• Digs