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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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Summon your courage and assume leadership of one of 18 factions to stand up to Alexander’s war machine. Can you alone or with the help of others turn the Macedonian tide, or will you too succumb? Perhaps you’ll let your ego take over and as Alexander try to earn the title “The Great” by crushing other nations under your heel?

Military Reserves

Maintaining balance between security and prosperity will prove more essential than ever.
The game mirrors historical reality by allowing you to demobilize your military units, letting the soldiers go back to their ordinary lives. More citizens will boost the economy while relieving the burden on your treasury by no longer needing to support a large standing army. But you’ll still be able to call them back into service when required. Of course, if they’re left without regular training for too long, they’ll lose their skills, eventually becoming useless as you’ll no longer be able to mobilize them into ready-to-fight units.

Whichever nation you lead, the hard decisions of everyday life will be upon you soon enough. You can hardly survive without a strong standing army of trained, battle-hardened warriors, but can the state economy support a huge military budget?

SteamAlexanderPage4Small

Economic Specialization

A strong, functioning economy will be the foundation of your success or failure. Building specialized resource centers to support your political and military goals will no longer be an option but an economic necessity.
Simply finding gold deposits won’t make you rich; you’ll need skilled labor and specialized facilities to mine, process, and utilize the ore to convert it into a real value. These facilities will have to be constructed in blacksmiths and cities to maximize profit from outlying mines. The costs of any such specialization are high, and building a multi-specialized facility operating various mines in the same area will require significant capital.

Yet, would you rather invest in building a single economic nexus, or do you prefer to spread your resource producing facilities to various locations? One decision can change the future...

SteamAlexanderPage2Small

Regional Capitals

One person cannot rule a growing empire alone. Building regional capitals will become a necessity in order to reduce local corruption, but transferring even a small fraction of power into the hands of lower officials can potentially sow a seed of disloyalty that can grow over time.
Will you concentrate all power in your hands and ignore growing corruption that might cause wide-spread revolts, or you delegate power and accept the risk that strong opponents will grow in your shadow?
Emissaries to Foreign Courts
Not only domestic affairs require attention, foreign politics are just as important. You should not miss any opportunity to skew the political balance in your favor if you want to further your goals abroad.
Send an emissary to a foreign court to influence the attitude of its leader. Your envoy can whisper rumors or praise into his ear and affect his attitude towards other nations to support your own interests and plans.

Keep in mind, though, that the emissary may easily become too attached to his temporary place of residence and may forget where his true loyalty should lie.

The World of Alexander

The story of Alexander plays out on a huge map spanning from mighty Carthage to great Persepolis, from wild inhospitable valleys of the Alps to fertile deltas of the Nile.
18 nations await your leadership, from warrior and nomad tribes of forest and steppe to the most powerful empires of the time. Assume the crown of Alexander or Darius; try the role of underdog and become the founder of a Roman miracle; or threaten the world order astride rugged Scythian warhorses.

All these options guarantee endless replayability and different play styles that will challenge your military expertise as well as political foresight.

Check out more on Steam store.steampowered.com/app/1520480/Imperiums_Age_of_Alexander/
or visit our website imperiumsgame.com.

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Comments  (0 - 10 of 19)
Forsete
Forsete

This page is awfully devoid of Shrek memes.

Reply Good karma Bad karma+3 votes
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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TheOneandOnly
TheOneandOnly

Looks like a very promising graphics solution for any 3D project; remarkably quick tech support from the developers too!

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