Mods

• RRig 21 - Stone & Steelby rotterdxmTileset: industrial Difficulty: medium The pipes in this decrepit refinery reverberate with the clank of security bots and the squishy hops of mutant slinkies. Probably best to turn on the lights as soon as you can... or is it?72 downloadsupdated 6 y ago
• TThe Vaultby StallafAll the crystals are behind locked doors in this high security facility.72 downloadsupdated 6 y ago
• MMission Protonby BlodyavengerMylo mined his share of riches from MoonVI but now he has to take off. In order to do so, he needs to disable take-off defenses first! Get to the base, disable turrets, and return to Kiwi ASAP! Difficulty: easy-medium / casual72 downloadsupdated 6 y ago
• TTwister Valleyby RoobarDorothy needs to go home through the valley. But there seems to be several twisters in the Twister Valley. Help Dorothy find the exit to her home by using them.72 downloadsupdated 6 y ago
• RRig 17 - Cryoponicsby rotterdxmTileset: laboratory Difficulty: medium Mylo must meander through a maze of pipes in this mad scientist's lair. Light on combat. Keep your head cool, there is always a way out! Completely reworked Jan '21 version!72 downloadsupdated 6 y ago
• CCrates & Barrelsby PotatosqrkYou found yourself stuck in some bizarre old warehouse. This entire place was overrun by all sorts of freaky monsters! Crates, barrels, and many other hectic obstacles block your way out. Can you grab all the gems and escape from here in one piece?72 downloadsupdated 6 y ago
• TThe Lost Valleyby WadmauzMylo found an entrance to a mysterious cave. Can you survive the Lost Valley? *Medium difficulty72 downloadsupdated 6 y ago
• EEmp103 - No nameby El mala persona... Max Score: 81900 Difficulty: Medium72 downloadsupdated 4 y ago
• AArctic Adventure 1-20by MusicallyInspiredHere's the missing level I forgot in the initial Arctic Adventure collection. It's a pipe-loaded level and in the original a random pipe would make you exit the level. I made it more challenging and added secrets. It's on the harder side so be prepared!72 downloadsupdated 4 y ago
• AArctic Adventure 1-18by MusicallyInspiredI tried to make this one a little trickier by being strict with bullet management. Good luck!72 downloadsupdated 4 y ago
• HHell's Hollowby 76561198996936535Mylo finds himself trapped in this deep, dark cavern with seemingly no safe way out. navigate this treacherous puzzle full of rocks, bats, and spikes, and pray for your own survival!72 downloadsupdated 4 y ago
• 1100by RoobarCelebrating 100 levels! All the possible enemies and pick-up items you can collect are in this 100th level! Most (fun) of all: that makes it haaard :)72 downloadsupdated 6 y ago
• SSpooktoberby RoobarBoo! Are you scared yet?72 downloadsupdated 6 y ago
• AAK121 - Sapphireby 76561199206721056Map inspired by an old level. Max score 15230072 downloadsupdated 9 mo ago
• FFungal Cavityby VortaleMylo's excursion into this moss cavern has left him stranded, and with little crystals to show for it! He will need to pick a red mushroom to clear the green one covering his only exit! Par: 1:2572 downloadsupdated 4 y ago
• UUnwise Vorticonsby timixretroplaysA wise Vorticon never jumps in the dark, but Mylo's not so lucky... Carefully designed to play well in the dark, with some all-new tricks and puzzles, and a reward for reaching the end - don't forget to grab the fruit!72 downloadsupdated 6 y ago
• PPlay Your Video Gamesby Retro ZenJust Mylo being Mylo. Look for Retro Zen on YouTube! =)72 downloadsupdated 6 y ago
• CCrossroadsby BraininatorA looping design that rewards those who learn well.72 downloadsupdated 6 y ago
• RRig 19 - Pole Danceby rotterdxmTileset: industrial Difficulty: hard-ish As Mylo's grandpappy used to say: if you need money, swing 'round the brass pole a couple times. Updated with more turrets! Re-updated with slightly less turrets! Balance is achieved.72 downloadsupdated 6 y ago
• Llong walk small forgeby Capt. SkellyManMylo got really high and put on some Steely Dan to listen to. After some time and considerable binge eating, Mylo fell asleep. When Mylo awoke, he found himself in the heart of Tiny Town Forge. "Gee Willy Woo Wizzle," said Mylo.72 downloadsupdated 6 y ago
• LLost Caves of Death M1by PhilnembaTime for another adventure for Mylo in another cave to collect more crystals to get rich again :) First of a series of difficult maps tested to where its possible to beat it without getting hit.72 downloadsupdated 6 y ago
• AAXR - Worm Tunnelsby clubsesselOkay, for the people still playing this game, here is something that should last a while. Warning: this is an extremely unpredictable map. Always be on your guard and take care of your ammo. 150,000 is already heroic, higher scores will take many tries. Glhf!72 downloadsupdated 2 y ago
• EEmp131 - Pillarsby El mala personaMax Score: 9980072 downloadsupdated 3 y ago
• Ssister2by 7656119944859509971 downloadsupdated 3 y ago
• TThe sewage buildingby 76561199109161407Because monsters and aliens poop green.71 downloadsupdated 3 y ago
• CChild's Play #1by GrayguyVery Easy level built for my 4 year old to have a level she could play with lots of "blastering" and no "scary Monsters" Perfect for beginners!71 downloadsupdated 4 y ago
• AArctic Adventure 1-09by MusicallyInspiredUpdated: Moved the position of the boulder spawner so that it's possible to get by it without being hurt (for the $50k bonus for not losing health).71 downloadsupdated 4 y ago
• AAK084 - Cellarby 76561199206721056Easy and very classic. Inspired to Blade Cop's and Malvineous' Camoto 2. Max score… 16800071 downloadsupdated 6 mo ago
• TTovi 2by Blade CopThis a remake of Tovi's 7 level pack which was released in April 30th 2002. The original version is in a very buggy state, for the original Crystal Caves. This is the second level of the pack. All credits go to Tovi. Link to the original version is below.71 downloadsupdated 4 y ago
• DDangerous Cavesby 76561199117405812This is my very first map. It's definetly not the best but I hope you enjoy it! Plus I tried to make it as hard as possible!71 downloadsupdated 5 y ago
• MMat01by 7656119843782944771 downloadsupdated 5 y ago
• TTG 1-4by g.schenk71 downloadsupdated 6 y ago
• AAXR - Cold Cellarby clubsesselPremise: My goal was a map with modular difficulty - the more ammo you save, the more treasures you can loot! (It's dark here, but the light switch is right beside you.) Difficulty: CC2+ Now with more snow!71 downloadsupdated 4 y ago
• PPlanet Cloudius IXby RoobarMylo landed on the clouds of Planet Cloudius IX. Meanwhile, on the surface of the planet, a spaceship just crashed... Find out more at71 downloadsupdated 6 y ago
• TThe Mine of Diamondsby tav81diamonds!!!!71 downloadsupdated 3 y ago
• AAnother Cave in Gaolby 76561199109161407Milo stumbles onto another cave in Gaol. Have fun.71 downloadsupdated 4 y ago
• AAK087 - Ladderby 76561199206721056I love wood items. Doable without losing lives. The aesthetic of this level is inspired by Timixretroplays' "Rockfall" :-) Max score… 15150071 downloadsupdated 6 mo ago
• CCamoto 2by Blade CopThis is a remake of Malvineous's Crystal Caves mod called Camoto and it was released back in 2013 for the original Crystal Caves. I decided to remake this because, I thought his 2 level mod was great and I wish he did more maps for it back then. This is level 2 and all credits go to Malvineous. L...71 downloadsupdated 5 y ago
• RRig 18 - Zigguratby rotterdxmTileset: alien ruins Difficulty: medium-ish Riches await in this buried xenos temple for those willing to take the plunge.71 downloadsupdated 6 y ago
• TThe Agencyby RoobarWelcome to the Agency, top agent Mylo 006 1/4! Your mission, should you accept it, is to infiltrate The Agency, defeat all the henchmen, overcome all the defense systems and unlock the vault! Good luck, agent Mylo! This message will self-destruct in 5 sec71 downloadsupdated 6 y ago
• SSquare Room [Hotfix]by clubsesselI don't know... seems like the creator doesn't come around to fixing the map, which is a shame because it's really well made. So here is the level with a minimal addition to make it solvable. All credit obviously to PacoYoshi.71 downloadsupdated 5 y ago
• RRig 17 - Satelliteby rotterdxmTileset: futuristic Difficulty: medium-hard The last place Mylo would expect to find crystals is inside this satellite he crashed his ship into... Tackle the challenges in any order. Pick your battles wisely! Low gravity. REVAMPED Feb 8 2021!71 downloadsupdated 6 y ago
• RRig 17 - Freighterby rotterdxmTileset: orbital lift vehicle Difficulty: medium-hard Mylo must make good his escape into the annals of history. He's hoping to hitch a ride on a freighter, but there's a deadly cargo... Complete REWORK 8 Feb 2021!71 downloadsupdated 6 y ago
• FFrostball Flipperby clubsesselSanta Claus brought new assets, so let's go wild! Tip: Stay patient and observe, going YOLO will likely result in a quick and confused death for poor Mylo. Max Score: 160,000. Good luck!71 downloadsupdated 4 y ago
• 33 doors 3 fatesby Capt. SkellyManMylo has to choose between three passages, but really he has to choose all three. He just doesn't know he has to choose all three, but he does. If he doesn't...well, he can't really finish the level. Just don't tell mylo.71 downloadsupdated 6 y ago
• MMylo's Underground 1-7by Capt. SkellyManMylo's Underground Level 771 downloadsupdated 6 y ago
• AAK123 - Famineby 76561199206721056Similar to a level of Secret Agent 371 downloadsupdated 8 mo ago
• SSpace Station Alphaby UselessRobotSpace Station Alpha has been overrun by monsters and an evacuation alert has been issued. Mylo might as well grab some gems on his way out.71 downloadsupdated 6 y ago

1.2k mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.