- Simulation
- Strategy
Game
Cataclismo
The Cataclismo left us broken. Construct fortresses and defend against waves of Horrors in this mix of tower defense and real-time strategy. Lead an expedition beyond the gates of the last city, and reclaim mist-shrouded ruins as you rebuild humanity—stone by stone.
Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist.
About Cataclismo
- Released
- March 2025
- Developer
- Digital Sun Games
- Publisher
- Hooded Horse
- Engine
- Unity
- Platforms
- PC (Microsoft Windows)
Where to get it
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsCataclismo's The Old Kingdom DLC Arrives on August 20, 2026Hello Hogardians! We're excited to announce that Cataclismo is getting its first DLC, The Old Kingdom! It's set to release on August 20, 2026. Check out the announcement trailer here: In The Old Kingdom DLC, you will venture north to reclaim a lost continent in a new strategic game mode. Defend multiple citadels, expand your realm, and build both its economic and military might turn by turn. An...
- Community AnnouncementsSave 50% on CataclismoDefend your fortress in Cataclismo, now 50% during the Hooded Horse July Publisher Sale. Cataclismo is a medieval fantasy siege defense game where you build fortifications, rally defenders, and fend off waves of terrifying creatures. Strategize your defenses, manage resources, and protect your kingdom from the encroaching darkness. Hooded Horse July Publisher Sale
- Community AnnouncementsSave 50% on CataclismoDefend your fortress in Cataclismo, now 50% during the Hooded Horse Summer Sale. Cataclismo is a medieval fantasy siege defense game where you build fortifications, rally defenders, and fend off waves of terrifying creatures. Strategize your defenses, manage resources, and protect your kingdom from the encroaching darkness. Hooded Horse Summer Sale
- Community AnnouncementsSave 50% on CataclismoDefend your fortress in Cataclismo, now 50% off in the Hooded Horse May Publisher Sale. Cataclismo is a medieval fantasy siege defense game where you build fortifications, rally defenders, and fend off waves of terrifying creatures. Strategize your defenses, manage resources, and protect your kingdom from the encroaching darkness. Hooded Horse May Publisher Sale
- Community AnnouncementsSave 40% on CataclismoDefend your fortress in Cataclismo, now 40% off in the Hooded Horse April Sale. Cataclismo is a medieval fantasy siege defense game where you build fortifications, rally defenders, and fend off waves of terrifying creatures. Strategize your defenses, manage resources, and protect your kingdom from the encroaching darkness. Hooded Horse April Sale
- Community AnnouncementsSave 40% on CataclismoDefend your fortress in Cataclismo, now 40% off in the Hooded Horse Spring Sale. Cataclismo is a medieval fantasy siege defense game where you build fortifications, rally defenders, and fend off waves of terrifying creatures. Strategize your defenses, manage resources, and protect your kingdom from the encroaching darkness. Hooded Horse Spring Sale
- Mods indexed
- 764
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
of 2.0k on Steam Workshop
Most downloaded
Measured from the source's own counts, summed across every release.
- 5 Shacks & 180 Oxygen - Booster's BlueprintThis blueprint contains 5 Shacks & 1 oxygen filter producing 180 Oxygen. Made with the most basic building block so that you do not need to unlock anything for it unlike other builds where you need higher prosperity. For more of my blueprints check this page >19.1k downloads
- 4X4 Watchtower2 damage enhancement points14.8k downloads
- 2x3 Stackable Stone StaircaseA copy of a staircase designed by CalenLoki in the Digital Sun discord, stacks infinitely12.7k downloads
- Simple Wooden Air Filter TowerA simple wooden Air Filter tower that can be placed all over your base or on 3x3 hillsides. Reaches the maximum +180 Air / minute production. Does not use any advanced wooden pieces -- only the most basic ones.11.9k downloads
- BETTER simple wooden air tower 3x3 max efficiencyonly uses basic wood parts and least waste 180/180 air /m11.8k downloads
- Infinitely Stackable Houses / 可以无限叠高的房子Be careful to align the struts when using.10.4k downloads
- The Best Stackable Houses ever..8.5k downloads
- Flying man's Blueprint7.7k downloads
- MAX Integrity - 3 Wall Deep + Stone Staircase7.0k downloads
- Home Stack 9x9 - 9 Shacks - 234 Oxygen (Full Mods)9 Shacks stacked into a low footprint (but tall) stack. 8 of the Shacks have full mod support with 1 only having only limited mod support. Full Air Filter Setup on top. With little modifications the tile can be assembled into a grid. 508 Wood 271 Stone 48 Minerals 2 Pop Links to my custom skirmis...6.9k downloads
- Collapse Proof WallsWall section (6 wide, 4 deep, and interlocking with itself) with floors at height 3 and 11. Designed for maximum toughness and collapse resistance: can withstand up to 65% damage on the forward facing ground floor before anything starts to collapse, and even after that has been fully destroyed th...6.7k downloads
- Bulwark TowerA tough tower designed for collapse resistance. Designed to pair with the Bulwark straight wall. This tower contains a staircase and plenty of room to place tactics items. Bulwark Straight Wall - Bulwark Corner Wall -5.7k downloads
- 2 Air filters & 6 Shacks & 1 Residential expansion（2氧+6房+1扩建）——红 雨's BlueprintThis should be the most cost-effective solution for occupying land and air, but this version has a problem where it cannot accommodate residential expansion when the prosperity level is 1. If you want to accommodate it, you must demolish a shack or perform a painful operation of pulling the camer...4.9k downloads
- Hold The LineYour last scouting party is falling to the horrors. Rebuild and reclaim land to hold off the ever growing threat.4.8k downloads
- Flying man's Blueprint可以无限叠加的木制旋转楼梯4.4k downloads
- Bulwark WallA tough wall designed for collapse resistance. The side with the protruding base should face the enemy. Bulwark Wall Corner - Bulwark Tower -3.9k downloads
- 7x6 MAX Integrity Tower with Inner Stone Staircase3.4k downloads
- Tower Defence: The RavineA Linear Endless Mode Tower Defence map with one path to defend being a large sprawling ravine. Build entrenched fortified points to hold the line, build a system of bridges to spread your economy across the map and prepare a final defence if all fails. The Mist wont wait long.3.2k downloads
- Bulwark Wall CornerA tough wall designed for collapse resistance. This is a corner piece designed to be paired with the Bulwark straight wall. The side with the protruding base should face the enemy. Bulwark Straight Wall - Bulwark Tower -3.1k downloads
- Collapse Proof Walls - StaircaseWall section (6 wide, interlocking with itself) with floors at height 3 and 11. Design for maximum toughness and collapse resistance: can withstand up to 65% damage on the forward facing ground floor before anything starts to collapse, and even after that has been fully destroyed the standing pla...2.8k downloads
- LM fortified wall 42 wood 226 stoneМаксимальная прочность, есть позиции для всех юнитов и много пространства для установки усилений войск (знамя, огненные стрелы и тд.). Столбы, поддерживающие позиции для войск, построены отдельно, поэтому, если стена падёт, войска не упадут вниз, пока не сломают столбы. Блоки под зубцами могут бы...2.8k downloads
- 4x3 Wall2.6k downloads
- 产出：55人口351氧气___Output: 55 population 351 oxygen住宅（7个）跟氧气全是升级过的，贴住可无限向左右扩建，住宅的住所扩建、密封隔离、自动泵均已配备。 The residence and oxygen are all upgraded, and the attachment can be infinitely expanded to the left and right, and the residence expansion, sealing and isolation, and automatic pump of the residence have been equipped. 材料消耗：氧气630、木头1125、石头91、矿物205...2.6k downloads
- Max Tactics Setup - Large UnitsExample of how to achieve, in a repeating pattern, all the bonuses (window, flag, special attack, cool-down reduction) for small units that have a 2x2 footprint. Note that occasionally a depth of available tiles 4 is required rather than 3.2.6k downloads
Browse all 764 Cataclismo mods Sortable by downloads, rating and date.
More strategy games see all
Why Cataclismo mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Cataclismo mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.