I'd like to get these three animals finished up for 0 A.D. Each one should have its own issue, covering the model, rig and animations. For each animal, we need six animations: idle, walk, run, attack, feed and death. Each animation should be a separate Action in Blender and exported to its own .dae file. Walrus Mesh: https://gitea.wildfiregames.com/0ad/0ad/src/branch/main/binaries/data/mods/public/art/meshes/skeletal/walrus.dae Texture: https://gitea.wildfiregames.com/0ad/0ad/src/branch/main/binaries/data/mods/public/art/textures/skins/skeletal/animal_walrus.dds Reuse the existing mesh and texture if possible, but the walrus needs a new rig. The camel rig can be used as a reference: https://trac.wildfiregames.com/browser/art_source/trunk/art/meshes%20and%20animations/skeletal/animals/camel/camel_animations.zip Animations needed: Idle Walk Run Attack Feed Death Muskox Mesh: https://gitea.wildfiregames.com/0ad/0ad/src/branch/main/binaries/data/mods/public/art/meshes/skeletal/muskox.dae Texture: https://gitea.wildfiregames.com/0ad/0ad/src/branch/main/binaries/data/mods/public/art/textures/skins/skeletal/animal_muskox.png Entity: muskox.xml Same idea as the walrus: reuse the existing assets where possible, but make a new rig based on the camel rig reference. Animations needed: Idle Walk Run Attack Feed Death Dragon Mesh: https://gitea.wildfiregames.com/0ad/0ad/src/branch/main/binaries/data/mods/public/art/meshes/skeletal/dragon.dae Texture: https://gitea.wildfiregames.com/0ad/0ad/src/branch/main/binaries/data/mods/public/art/textures/skins/skeletal/animal_dragon.dds The dragon needs at least a new mesh, along with a rig that works for it. New textures are fine too if the existing ones aren't suitable. Animations needed: Idle Walk Run Attack Feed Death   Camel The camel is a bit special, we have the mesh  A few things to keep in mind Keep one material per mesh, and pack the textures into the .blend file. When exporting the animations, remove the material from the export setup so the .dae files don't end up with texture paths.  One blend per animal LODs would be nice to have, but they're optional. To import DAEs in recent blender versions you need to enable the plugin   If you want something different it would be nice to have this building made in modular pieces. I had started but never finished Villa-of-the-lions-in-ostia-antica.blend

It might be a viable strategy and just a way of preference and for sure it's more than sufficient against just one AI opponent, but in other settings it might be important to get certain upgrades (market, forge,...) sooner.

This is a question I asked myself years ago as well. What really helped me to think about different strategies was the following topic and the reply by @cl2488  

From less to more radical: I've proposed for not all to have basically the same Storehouse techs (just the names are different, I think), this would give more variation on how each civ would obtain and trade resources. I haven't carefully checked the other economic techs among civs, but all that is an opportunity to add variation. The same regarding religion, that being something that should be quite different among civs, and luckily many current temple techs lack decent names and icons, giving ample space for change and (needed) improvement. I've mentioned that all civs could have their very different special units, like the Ministers are for the Han. Also, the naval system I proposed is actually not that radical (after boarding is implemented) and gives more opportunities for strengths and weaknesses, thus each civ would have a more characteristic, interesting and historically accurate way to do things at sea (which right now it's something quite avoided, when it could be fun, as it has been in some Total War games).

Maybe the wiki article JavaScript can serve as a first start?