When comparing Simutrans vs 0 A.D., the Slant community recommends 0 A.D. for most people. In the question“What are the best open-source games?” 0 A.D. is ranked 6th while Simutrans is ranked 33rd. The most important reason people chose 0 A.D. is:
Still currently in development, 0 A.D. is currently in Alpha stages and completely free. For those willing to wade through the multiple bugs, essentially testing the title, this game will scratch the itch of any RTS fan on a shoestring budget.
Specs
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Pros
Pro Passengers & goods have their own travel destinations
Each product has a chosen destination and they will only use your company if you deliver them where they want.
Pro Multiple paksets
There are multiple graphic packages to choose from, each with different dynamics. So even though you have mastered one pakset you can have a different gameplay with another.
Pro Cross platform
Available for Windows, Mac, Linux & Steam-OS.
Pro Available through Steam
Simutrans is available through Steam for those who prefer automatic updates and game management through Steam.
Pro Transportation
For fans of transportation games it has lots of vehicle options and things to transport. The multiple graphical packages also mean a, kind-of, multiple games in one, as each graphical package can be completely different from the others.
Pro Multiplayer
Multiplayer support still has bugs and disconnections happen, but it works and is easier to setup with version 120.3 and up. It also allows you to setup servers without announcing them to other players, though that requires manual work.
Pro Map customisation
The map has multiple customisation options, like map size, climate zones, terrain 'roughness' and number of rivers, cities, industries and tourist attractions, & more.
Pro Modding
Creating new objects is not too hard, as long as you have some drawing skills you just need a text file with some parameters and then you can compile it to enjoy. Some paksets even rely on rendering from 3D objects.
Pro Community
Even though the game is old the community is active and open to developers and modders who want to improve the game. Decisions on how the game evolve also accept the decision of the majority of the community.
Pro More complex version called "Extended" for hardcore gamers
A fork of the project called Simutrans Extended extends the standard game with more complex and realistic features for extra complexity and realism for those who like hardcore gameplay. The fork is available in their official forums.
Pro Free, Real-Time Strategy title actively being developed
Still currently in development, 0 A.D. is currently in Alpha stages and completely free. For those willing to wade through the multiple bugs, essentially testing the title, this game will scratch the itch of any RTS fan on a shoestring budget.
Pro Multi-platform support
The game will run on any Operating System, whether it be Linux, OSX, or Windows, which is great for people who dual-boot or use multiple OS's across their devices. No matter the OS used, one can install and play this game.
Pro Addictive Age of Empires style gameplay
This game can be seen as a spiritual successor to Age of Empires, thus it will provide similar gameplay to those who are familiar with the AoE series.
Pro Straightforward RTS gameplay
0 A.D. brings recognizable, straightforward, Real-Time Strategy gameplay to the players. With a mini-map in the bottom corner, resources shown in a bar at the bottom, and unit selection through double clicking, all of the major elements found in most RTS games is here, making for a very familiar game for those that are used to the genre.
Pro Code is open-source
Even if the current developer team chooses to no longer work on the game, others can keep contributing to the source code and modify it.
Pro Active development
By being in active development the game allows for frequent bug fixes as well as frequent new content. While it is still in alpha, the state of the game playability is pretty good with new features being added all the time.
Cons
Con Unfinished, deprecated packsets or child's drawings instead of realistic buildings
Con Strange packsets mechanism
Con Strange default packset
Con Currently in alpha
0 A.D. is an ongoing open source project that is as of yet feature complete.
Con Slow development
0 A.D. is an ongoing open source project that is as of yet feature incomplete. This game is still in Alpha version 23 Ken Wood as of September 2020.