When comparing Cosmic Encounter vs Arimaa, the Slant community recommends Cosmic Encounter for most people. In the question“What are the best board games?” Cosmic Encounter is ranked 9th while Arimaa is ranked 30th. The most important reason people chose Cosmic Encounter is:
The basic rules of the game are background noise. The alien powers, both individually and as they interact with each other, determine the dynamic of each game you play, and each dynamic is radically different. For example, you can try different races and alien powers each time you play, and the way to mix and match them is almost limitless. This makes every game feel different than the one before it.
Specs
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Pros
Pro Every game is unique
The basic rules of the game are background noise. The alien powers, both individually and as they interact with each other, determine the dynamic of each game you play, and each dynamic is radically different. For example, you can try different races and alien powers each time you play, and the way to mix and match them is almost limitless. This makes every game feel different than the one before it.
Pro The social component of the game requires you to strategize with other players
It's almost impossible to win on your own. When attacking or defending, you will get the chance to ask for allies on your turn, or assist others when they are engaged. Allies can help you win the attack or defense, but they will also gain benefits if successful. It is a team-based game, although each player is out for themselves in the end.
One of the neatest parts of the game are the negotiate cards - instead of laying down an attack card you can try to negotiate. If you both play negotiate cards, you have 1 minute to come to an agreement which can include creating new colonies, trading cards, or virtually anything. If the players don't come to agreeable terms within a minute, they both suffer a hefty penalty (4 of their ships are sent to the warp).
Pro Potential for very satisfying, creative plays
With so many unique combinations of alien powers and the fact you can form unstable alliances with other players, there's so many ways to get creative. For example, knowing when and where to pick your battles. Perhaps two other players just had an epic battle and now they're down a few ships - it would be the perfect time to swoop in and try to colonize their planets when they're weakened. Perhaps you have a special power that will give you an edge in a certain fight against another player. By paying attention to what's going on around you at all times, skillful tacticians will find all kinds of extremely clever or amusing plays to be possible.
Pro Great illustrations on the cards
Illustrations on Alien Power cards are beautifully rendered and imaginative. Each one features full color, hand drawn creatures that are distinctly unique and look like something out of a sci-fi movie.
Pro You have some influence over the theme of each game
At the beginning of each game, players are given 3-4 alien powers to choose from, usually taken at random. However, if you were trying to put together a specific theme - for example, a war between certain aliens races, or a battle using only certain powers - you can manually select the set of powers available to each player. This allows you to generate personalized games that have specific story to them or heavily revolve around a particular strategy or resource.
Pro This is an exercise in social dynamics as much as a board game
Working with or against other players, forming unstable alliances, and negotiating with other players creates some situations which will test your real world social skills.
Pro Excellent expansions
There are six expansions which not only add a minimum of 20 new alien races with new powers each, but they also brings unique gameplay mechanics to the table. For example, Cosmic Conflict adds space quake hazards, and Cosmic Alliance adds new rules for teams and expands the game to 7 players.
Pro Not as complicated as it might sound
After you play one or two games, the basic mechanics become trivial to work with. Additionally, you only have to worry about learning as many alien powers as you have players in the game, so your personal knowledge and experience with the powers can grow slowly over time. Most alien powers take a minute or two to really understand, then the fun begins of finding creative or unique ways to develop strategies around them.
Pro Easy to learn
Arimaa is a game suitable for both young and old, it was made to be intuitively simple but with a lot of depth. Even the setup follows this premise - you set up the figures in two rows like in chess, but you can place them in any way you like.
The rules are simple – in your turn you have four actions. You can either move a figure four times, move four figures one time, or do any combination in between. All figures can move forwards, backwards, and sideways apart from rabbits who can’t go backwards.
You can use two actions on a stronger piece to push or pull your opponents’ weaker figures. These stronger figures also “freeze” adjacent weaker pieces, preventing them from moving unless there’s a friendly piece next to them. If a figure happens to walk into one of the four trap squares or get pushed/pulled into one without a friendly piece next to it, then it is removed from the game. The first player to get a rabbit to reach the opposing side wins. The game can also be won by removing or immobilizing all your opponent’s rabbits.
Pro Active online community
The official site of Arimaa is quite lively and features reviews, downloads, the latest news, an active public forum, and much more. There’s even an online gameroom, so you can play Arimaa against computers or other people in either turn-based or real-time games. There are many people online, so it shouldn’t be a problem to find a game.
Pro Can be played with a chess set
In case you don't want to purchase the gameboard made by Z-Man Games, you can use the components of a regular chess set. It also helps if you have four coins to mark the trap squares. You probably already have the equipment you need.
Pro Fluid gameplay
The 4 moves per turn gives Arimaa's tree of possible moves a very high branching factor. (It was invented for AI programmers as a game more difficult to program for than chess, but easier than Go). You can't think several turns ahead like chess (the space of possibilities is too big), instead you have to think in terms of distances and capabilities, giving Arimaa a very fluid feel.
Cons
Con Can cause arguments
Due to the nature of the game, which has you working with others and then turning against them in the same breath, it can create some situations where people are going to feel used or mistreated. This can result in a lot of fighting or arguments, especially when playing with easily offended people.
Con Unbalanced
In situations where all players gang up on just one single player.
Con Some alien powers are difficult to parse
Some of the cards have walls of text that look intimidating at first, and may take a slow read and group discussion to really figure out. Thankfully, the alien powers are divided into three sets based on "difficulty" which translates roughly to "difficulty to understand, and how much it disrupts basic gameplay." Green (easy) cards are usually simple enough that a child of 12 or so can understand them.
Con Might be hard to teach
This is one of those games that has to be played to be fully understood. As such, it can be hard to teach someone. It will take new players a few rounds to start understanding.
Con Requires constant engagement
Arimaa can get out of hand quickly because there’s pretty much no way of predicting how future turns will play out. This is because it’s significantly harder to pinpoint four actions that your opponent might do as opposed to one action in similar games to Arimaa. Due to this the game requires the players to continually pay close attention to what they’re doing, which isn’t inherently bad, but can be a bit problematic for people with shorter attention spans or for people who don't want to take the game too seriously and just play it for fun and socialize meanwhile.
Con Quite long to play
A game of Arimaa is very unpredictable and can often lead to a very long session. The time can vary between 15 minutes and 2 hours, so it’s not great if you’re looking for something that you can quickly grab and play through.
