- Simulator
- Strategy
Game
Synergy
Humans live on a hostile planet. In this survival city-building game, develop your city, face natural disasters, make the right choices. Explore this environment-changing world while keeping your people happy despite extreme weather conditions.
About Synergy
- Released
- April 2025
- Developer
- Leikir Studio
- Publishers
- H2 Interactive Co., Ltd., Goblinz Publishing
- Engine
- Unity
- Platforms
- Linux · PC (Microsoft Windows) · Mac
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.
- Mods53A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
- resource packs46A resource pack replaces the textures, sounds, models and language files the game ships with. It changes nothing about the rules, so it is safe on a vanilla server.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsUnity Vulnerability PatchHello everyone! Just a quick heads up if you wonder why your game was updated when nothing seems to have changed ; we just patched the game for Unity's vulnerability! Have a wonderful day!
- Community Announcementsv1.2 Update - Out Now!Hello everyone! We're here today with a new update, Synergy's 1.2 Update! While there's no new content in it, there is a LOT in this one. But this is mainly focused on overall performance optimizations ; some of you might know that it is not easy to do such things, and we're proud we made it, and proud of the result! You'll see all the changes in the patchnotes below (that has the word "Optimiz...
- Community AnnouncementsUpdate 1.1 - Hotfix #1Fix birthrate crisis effect active on other saves when enabled once on a quest step
- Community Announcementsv1.1 Update Out Now!Hi everyone! Update 1.1 is here, featuring Hard Mode and other requested features!We hope you enjoy this final major update and can’t wait to hear your feedback! New difficulty Mode: Hard mode named Resilience Mode+10 temperature on whole map in hard modePlants die faster in Resilience mode (slower in Harmony mode)Plants give less ressources in Resilience Mode and more in Harmony modeRemoved ra...
- Community AnnouncementsUpdate 1.0.3Hello everyone! We're pushign an update with quite some changes on a lot of different levels to make ewveyrhting more balanced, clearer, and more stable! You can see a list of all the changes in the full changelog below. And as usual, thank you very much for playing Synergy, and a friendly reminder that if you like the game and want to give us an extra bit of help, you can always review the gam...
- Community AnnouncementsUpdate 1.0.2 - Hotfix #1Hey everyone! We're just patching one issue but that was really annoying. Sorry for the inconvenience, and thanks for playing Synergy! Update 1.0.2 - Hotfix #1 Bugfix Fixed a bug causing a soft lock during the exploration event “Concealed” resolution if the player didn’t have the resources needed in the outcome of “Bond with Locals” step. The cost of each outcome has been removed to make these...
- Mods indexed
- 99
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
Most popular
This source publishes no download figure, so these are ranked by how many people saved or subscribed to them.
- Gordon Freeman Enhanced SynergySkins / General
- Gordon Freeman HEV AlyxSkins / General
- Fisherman player modelSkins / General
- mopckou_bou_beta(Battleship)Maps / General
- CS:GO MP5SD for MP5K Replacement + HL1 Mp5 SoundsSkins / General
- Fixed Black Mesa MP5 (final)Skins / General
- Waiting For Players..Prefabs / General
- Solid Snake player modelSkins / General
- Red Health VialSkins / General
- Veho v1.8.1 beta (update for veho v1.8 beta)Game files / General
- Veho v1.8.2 fullGame files / General
- Combine 66 v2Skins / General
- syn_castleMaps / General
- blueplasmavialSkins / General
- Gordon FreemanSkins
- Veho v1.8 betaGame files / General
- Rng citizensSkins
- Rng combineSkins
- Synergy LOGO removerTextures / General
- syn_surf_adventure_misterious-Maps / General
- SynGreen HUDGUIs / Other/Misc
- Synergy new yearGUIs / Other/Misc
- syn_fireteam_b1Maps / General
- The Fun House...Maps / General
Browse all 53 Synergy mods Sortable by downloads, rating and date.
More strategy games see all
Why Synergy 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 Synergy 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.