What can it do?
Lots of things! See the features page for an up-to-date list of the current features. Also, take a look at the screenshots page to see for yourself the kinds of eye candy OGRE can pump out.

Is OGRE A Game Engine?
No. OGRE can be (and indeed has been) used to make games, but OGRE is deliberately designed to provide just a world-class graphics solution; for other features like sound, networking, AI, collision, physics etc, you will need to integrate it with other libraries, something several frameworks have done, and we have a collision / physics reference integration library as an example in our distribution.

Why? Well, one reason is that not everyone who needs a 3D engine wants to make games, so we don't assume that you do - you can use OGRE for games, simulations, business applications, anything at all. Secondly, even within the games industry, requirements can vary widely; for
example a MMORPG will need a very different kind of network library than an FPS, and a flight sim will need a different kind of collision / physics system to fighting game. If OGRE included all these features, we would be enforcing a particular set of libraries on you, with an
inbuilt set of assumed requirements, and that's not good design. Instead, we provide a very integration friendly API and let YOU choose the other libraries, if you want them. Many experiened game developers have expressed their approval of this approach, because there are no
inbuilt constraints. It can be more daunting for newer users who just want to build another FPS-style game, but for those people there are a growing number of existing frameworks using OGRE which provide a complete solution using a given combo of libraries; but it's important
to realise that OGRE itself will always remain separate, flexible enough to be incorporated into any of these. The principle is of collaboration and integration with other libraries, rather than
assimilation of them, a standard tenet of component-based design.

Why should I consider using OGRE (rather than the other zillion 3D engines out there)?
Many other engines, whilst technically impressive, lack the cohesive design and the consistent documentation to allow them to be used effectively. Many of them have long features lists, but have the feel of a bunch of tech demos lashed together with twine, with no clear
vision to hold them together. Like any other software system this becomes their downfall as they become larger. Most other engines are also designed for one particular style of game or demo (e.g.
first-person shooters, terrain roamers).

OGRE is different. OGRE is design-led rather than feature-led. Every feature that goes into OGRE is considered throughly and slotted into the overall design as elegantly as possible and is always fully
documented, meaning that the features which are there always feel part of a cohesive whole. Quality is favoured over quantity, because quantity can come later - quality can never be added in retrospect. OGRE uses sound design principles learned, tried and tested many times
in commercial-grade software - the object-orientation mentioned in it's moniker is just one of those approaches - frequent use of design patterns is another. The core development team is kept deliberately small, and all of its members are veteren software engineers with many
years of real-world experience. Patches are welcomed from community, but they undergo a strict review for both quality and cohesion with the Ogre philosophy before being accepted.

OGRE does not assume what type of game or demo you want to make. It uses a flexible class hierarchy allowing you to design plugins to specialise the scene organisation approach taken to allow you to make any kind of scene you like. Want to render indoor levels fast? Fine, use the BSP/PVS plugin scene manager which has already been written. Want an outdoor landscape? Again, use another plugin scene manager. The rest of the engine continues to function exactly as before.

So the short answer is - if you favour design quality, flexibility and clear documentation, choose OGRE. You know it makes sense. ;)

Is it really free?
The Ogre source is made available under the GNU Lesser General Public License (LGPL), which basically means you can use it however you like as long as release the source for changes you make to the core engine if you distribute your product. The source to your application or to new plugins you create does not have to be released (although it would be nice if you did). See the licensing page for full licensing terms.

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Aggressors: Ancient Rome does not start and end with the Mediterranean scenario. Our players can create their own maps, factions, units, rules, or whole mods.

We would like to introduce you some of the most interesting ones, and let the creators themselves tell you something about what they created, what was their motivation, how they enjoyed creation of these scenarios, and what they may have struggled with. Today we would like to introduce you a scenario called "The Gallic Wars", created by Liko336.

gallicScreenshot1


Without further ado we give the floor to him to tell you about his "child".

One year ago, I came across the old game History [Channel] Great Empires: Rome and its original PC counterpart, Legion Gold. I decided to play another round, and enjoyed it, even with the lack of graphic, AI and diplomacy possibilities. My favorite map was “The Gallic Wars” with all its historical tribes. The historical feeling was good; you could see how your empire gets bigger with each city you conquer.

gallicScreenshots7

Then, around a half year later, I discovered Aggressors: Ancient Rome. I played various games in different scenarios, loved all the possibilities you get in this game, and started to create my own scenarios. I loved the Ancient Mediterranean map in Aggressors; however, I missed the upper part of Europe; I especially would have loved to meet the Gauls as in the old games mentioned before. There were a lot of scenarios, covering the battles over the River Rhenus, the British Isles, but the Gauls were missing. So, I decided to close this gap. My next idea coming to mind was to play “The Gallic Wars” from Legions Gold, but with all the advantages from Aggressors: Ancient Rome (A:AR). I just imagined my beloved scenario with the powerful AI from A:AR, all the new diplomacy possibilities such as Defense Pact, Confederation, trading, and so on. I was sure, if I can shift this map to A:AR, I will be able to play it in a much more historically accurate setting and get a way deeper, more narrative experience.

gallicScreenshot3


So, I started working on my second, bigger scenario and decided to publish it as soon as it was ready. Then I read of the new possibility to generate in-game maps based on images of real maps with the built-in map generator of A:AR. This was exactly what I needed: I took a map of France and a little bit of its environment around where you could see the different terrain types as well as heights, and generated the first version of the map. The great thing about it was that the map I generated this way had original proportions. I think this is essential for a good historical feeling. How often have I played on maps, or even created own maps, with unrealistic lengths between different places that just makes everything look odd!

gallicScreenshots6

After this, I further edited the generated map. I added more details, like rivers, swamps and mountain passes. The next steps were to set all the cities and to create the factions with the borders as they were in the original game. I opened the original game, compared the maps and added these things. I had to compare the distances and to figure out what would make sense for the units in A:AR. Rarely I needed to change some distances for gameplay reasons. This all was a pretty fast and straightforward process.

To finish my scenario, I had to set up the initial relationships between the factions. I was able to rely on the original game there as well. Changing the available units for the different factions, adding custom flags, setting up the start resources, naming territories and adding the difficulties were parts of the final work as well.

gallicScreenshots5

Once this was done, I played a first game and loved it. Meanwhile I discovered custom Objectives, which you could add for every nation. Possibilities for Objectives are almost endless. And the good thing is, it would also impact the behavior of the AI. Hence, I thought this could even make the scenario more historically accurate. I started experimenting with the Objectives and added some of them. It was very fun to work with Objectives. I figured out how to add my own descriptions for them and for the countries. This is great, as it offers you the possibility to tell your own – or, as was my goal, a more or less historical – story. I wanted to add realistic objectives that fit to the possible goals of the ancient tribes/factions. Therefore, I had to do some research work. This was another part I really loved. I learnt a lot about the factions/tribes while searching for information. And I like to have this historical knowledge!

But this was also – and it still is – the most time-consuming process for me: Adding Objectives and gathering historical information.

gallicScreenshot4

I am happy with the scenario I created in its current state. There are still things I could improve. This is maybe the negative side, because you get so many possibilities. You could always improve, add or change something. ;-)

As mentioned before, I would like to add custom, historically accurate Objectives for more nations that are fun to pursue. While researching, I also discovered some inaccuracies I should fix. In the original scenario, most of the cities were not ancient cities, but more different Gallic tribes. To solve this, I would need to change all the city names to real city names and not the names of its owning tribes who lived in these locations. This brings me to a next point: I could also set up city names for the regions and the possible unit names for each faction. I think these are smaller steps, with a lot of time required to do so. But these possibilities are differences to the original game and what it makes better – aside from all the great new mechanics and the AI you get anyway, for sure. :-)

Give it a try and let Liko336 know what do you think.

Steam workshop link to Gallic wars

Release on 30th!
Aggressors: Ancient Rome

Release on 30th!

Aggressors: Ancient Rome

We finally finished our long-awaited 4X turn based strategy game!

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Comments  (0 - 10 of 20)
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Forsete
Forsete

This page is awfully devoid of Shrek memes.

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Fenimore
Fenimore

Why Not Troll Engine?

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TheUnabridgedGamer
TheUnabridgedGamer

Venetica and Garshap...

Seems like this engine hasn't gotten to be in a title to do well by reviewing standards.

Perhaps sometime soon, it'll be used for something that could be the PC equivalant (in success level) of Uncharted 2?

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koburamoe
koburamoe

I dont see how those games getting bad reviews is the graphics engine's fault .
They were DECENT games , for cheap prices decent .

Plus this engine is at least free and open source , unlike the others where in unreal engine 3 you need to buy a full license tog et acces to the source code and modify the engine itself .

Pretty decent for the price : FREE and unlimited acces.

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Lex1202
Lex1202

Something is wrong with the info. Since version 1.7, the engine is on an MIT license, not GPL

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x3nu
x3nu

Umm, I'm not sure I follow. If your asking if there is a game engine with quality to that of gamebryo that's free, that would be no, or at least to my knowledge.

If you want to download Ogre, just go to the site.

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J.Sheppard
J.Sheppard

The fact that the Ogre software ties into "speed tree" is also helpful it aids us when placing and designing our forested maps that would take a year to complete if you were doing it individually.

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x3nu
x3nu

Great engine, i've been testing it and it is capable of producing some decent graphics. Much better than irrlicht or any other open source engine out there.

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Mejikojin
Mejikojin

How did you download and do you know any easy to use engine with the same level desing as gambryo thats free to download

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