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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!

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OpenSA Version 20210327

OpenSA Version 20210327

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 27)
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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Lordhlebyushek
Lordhlebyushek

Very good mod! But I would like to know the name of the original game.

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Dzierzan Creator
Dzierzan

Lordhlebyushek
It's Swarm Assault. It's in the main mod description above.

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Lordhlebyushek
Lordhlebyushek

thanks!

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aguiadourada
aguiadourada

dude you are awesome! excellent job! I was looking for this game for a long time and didn't remember the name and I found it here on moddb by chance your work! thank you so much!

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Dzierzan Creator
Dzierzan

aguiadourada
You're welcome!

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slendykid
slendykid

is it possible for parasites to get nerfed a little? i know you it is gonna be close to the actual game and i know the actual game isn't that balanced but they are very powerfull by just spamming them, is it also possible to have some more skirmish maps when you have the time or wanna do them?

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Dzierzan Creator
Dzierzan

slendykid
Hi. Hmmm... Yeah, I mean, the general goal of this mod is not really to be super balanced. And to be honest I have no idea how to even balance them apart from increasing the reload delay or decrease stun time. Mission 81 which will be in the next update was kinda made based on original Parasites units.

About skirmish maps, well, I basically focused on missions, as I felt like this would be the main thing which would be interesting for people. What kind of skirmish maps do you have in mind? Classic random layout or "balanced" layout which OpenRA mods have? That's usually mirrored layout. The first option can be actually easily done, as original Swarm Assault has random map generator and OpenSA can import those maps. However the max size is limited which is sad.

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slendykid
slendykid

about the balance, you are very much right as it's not suppose to be balanced, and i personally like the messy gameplay with this! it's just to the point where just 3 parasites are able to stop a entire army with SUCH a massive range is just a bit annoying

2 the maps that you have now are pretty solid, a suggestion i could give is make some of the mission maps into skirmis, and maybe at least make one or two 6 player maps, they can still be messy and doesn't need to be mirrored, but just a bit more of choice would be nice, all and all i still think the game is great and funny as hell, keep it up!

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Dzierzan Creator
Dzierzan

slendykid
Yeah, thanks. I'll see to it. But first I wanna focus on missions as I've got only 20 missions left to be recreated and some other changes (creep flyers' weapons need to be improved, so they match original ones).

Reply Good karma+3 votes
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