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OpenSA (SA stands for Swarm Assault) is a real time strategy game that requires you to control huge swarms of ants, beetles, spiders, scorpions or wasps in a desperate attempt to control the landscape. No resources, no population cap, just build your army and smash the enemy!

You do not have to build anything, all you need to do is to start instantly producing units and conquer other colonies. Easy and simple!

The original game is hardcoded to 640x480 resolution and some of its mechanics are nowadays obsolete. That's why the idea of bringing this game to OpenRA engine has been born so everything can be either fixed or improved in the brand new engine. Also the ORA engine allows to provide multiplayer feature as well, however for that matter, the original balance has to be redesigned as the original game was not meant to be played online.

The project's goals are:

  • Recreation the whole singleplayer campaign with almost identical gameplay,
  • Provide brand new multiplayer experience,
  • Provide easy modding,
  • Support for any resolution,
  • Be open source.
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Hello there folks!

It’s been a while since the last version was released. The general progress was slow but steady. For those who are really interested in this mod, I’ve got a lot good stuff. So without further ado, let me show you what you can find in the latest release!

  • 100 missions!

Yes, you read this right. OpenSA has 100 missions recreated. Can you beat them all? Plus as a bonus, the mod has two additional custom missions.

100missions

  • Weapon behavior for creep plants is more faithful to the original game

Choc Freckle and Popcorn got a major update for their weapons. Visually, they look almost identical to the vanilla gameplay. Take a look at below GIFs:

PopcornChoc


  • Creep flyers got their weapons updated as well

Just like the plants, flyers now have more accurate weapons. GIFs below:

Dragonfly

FlyingMachine

Moth

Fly


  • Production animation on minimap

The original game has an animation which is shown on the minimap whenever a colony is producing something. A very similar effect was created:

Minimap


  • Wasps can fly anywhere without glitches.

In the previous version, wasps could fly over the water tiles, but they tried to land as soon as they stopped. While it was true to the original behavior, it caused from time to time visual glitches and you couldn’t command them to go to the water area. I decided to fix that by allowing them “stay” above water. This causes less issues and allows player send those bugs wherever she/he pleases.

Wasps


  • Campaign mini map faction colors

While not so significant change, it adds original game’s charm to this project. Basically factions use the same colors for the mini map as it is used in the original game, for better mini map readability. Moveover, please do notice that production buttons are now 60x60 (original ones are 40x40):

Minimap colors


These were all the most important changes I could think of. There is of course more than that and you can find that in the changelog, either on Github or in Download section here.

And I’d love to again thank Matthias Mailänder (Mailaender) for his contributions. Without this help, this project wouldn’t be where it stands now. Thanks buddy!

And of course the whole OpenRA team. You guys rock!

Download link:

Moddb.com

Github.com

OpenSA released!

OpenSA released!

News 10 comments

The first pre-release version of OpenSA has been released!

Add file RSS Files
OpenSA Version 20210523

OpenSA Version 20210523

Full Version

Another version which does some balance changes, adds additional mission and fixes.

OpenSA Version 20210327 [OUTDATED]

OpenSA Version 20210327 [OUTDATED]

Full Version

This is a quick hotfix to solve some glitches and balance issues. Moreover, this version adds two new custom missions.

OpenSA Version 20210321 [OUTDATED]

OpenSA Version 20210321 [OUTDATED]

Full Version

A new version of OpenSA which has 100 missions and a lot of new cool features.

OpenSA Version 20201107 [OUTDATED]

OpenSA Version 20201107 [OUTDATED]

Full Version 11 comments

Another version of OpenSA. It adds 31 more missions, does again balance changes and fixes some important issues.

OpenSA Version 20201018 [OUTDATED]

OpenSA Version 20201018 [OUTDATED]

Full Version

The second version of OpenSA mod. Minor balance changes, crash fixes and 20 new missions! For full information, please read the changelog.

OpenSA Version 20201004 [OUTDATED]

OpenSA Version 20201004 [OUTDATED]

Full Version 11 comments

The first version of OpenSA mod. Build your army of bugs and annihilate the opposition!

Comments  (0 - 10 of 35)
Guest
Guest

I have a question about the map editor.
I want to make it like singleplayer.
Only Creeps and Neutral appear on the Owner list
What should I do?

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Dzierzan Creator
Dzierzan

Hi, sadly it is not possible to add factions via the map editor. You have to create a map, even a blank one, then go to map's yaml files and add there factions. I recommend checking other singleplayer maps yaml files in order to understand that. You can find them in "OpenSA\mods\sa\maps". Yaml files can be opened with a notepad, notepad++ or any other software which can read text.

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Guest
Guest

Ummm... Sir...
I have modified map.yaml, rules.yaml, script.lua but still getting the error.
Please explain in detail...
And is there a place where you can share maps?
Paralysis time seems too long

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Dzierzan Creator
Dzierzan

Hit me on Discord. You can join OpenRA discord server and ask me more plus ask OpenRA community as well to get more detailed information because it's too much to explain in simple Moddb comments. (I swear, it's not hard, but just requires some explanation).

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Guest
Guest

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Guest
Guest

is there any manual for keyboard shortcuts? how do we stop all production to let the colony heal? and also if its possible to make simple trainer or a menu to enable cheats. my children like to watch me play this game but unable to play it and loose all the time. also if cheats are enabled, we can play in a more relaxed way. health option for the colony would be sufficient.

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Dzierzan Creator
Dzierzan

And you can also just press Enter, type "/all" and press Enter again. All cheats will be activated at the same time. It works for skirmish and campaign. And to deactive them, send "/all" again.

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Dzierzan Creator
Dzierzan

Hi!

1. All hotkeys can be seen in Settings -> Hotkeys
2. To stop the production, just cancel the production of units (either right click or left click on the bug icon depending on your setup).
3. If you play a skirmish mode, in the lobby there's "Options" and if you click that, there's "Debug Mode". Now, in the skirmish map, you'll have a debug menu if you press ESC button, you'll have a debug tab with cheats like instant production and more. However, I presume you want the same for the campaign. Let me write that in steps:

a) Go to OpenSA installation folder (where you installed the game).
b) Go to "mods" folder
c) Go to "sa" folder
d) Go to "rules" folder
e) There should be a file named "campaign.yaml", open that file using a notepad.
f) If you did that right, there should be a line DeveloperMode: CheckboxEnabled: False. Change "False" to "True" and save the file.
g) Go back to any mission and during the game, just press ESC button and click "Debug" tab.

I hope it's all clear. If not, ask me questions or contact me directly for faster response.

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Leikeze_GameReplays
Leikeze_GameReplays

This is a rather fantastic upscale to the original game, which I spent a rather long time playing during my childhood, along with its some more obscure cousin, Swarm Rampage.

Have you considered making a public Discord for it to, perhaps, garner more attention for it?

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Dzierzan Creator
Dzierzan

Leikeze_GameReplays
Hi. I played Swarm Rampage as well, but I was never super fond of it, mainly due to how slow it was. Although I can tell that it had some cool upgrades.

I am not sure if I wanna maintain Discord server for a game barely played by anybody. For this reason, it's better to join official OpenRA Discord server and use "community-mods" channel for that. If the player count significally increases then who knows.

Yes, I tried to advertise it on various reddit pages, itch.io and OpenRA itself. Well, there was apparently always somebody who did recognize the game, but since the game itself wasn't very popular, I can't really expect a huge income of players.

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