I’m currently working on 4 games with auction mechanics. This wasn’t intentional. After getting Plutocracy complete enough for the Cardboard Edison Award I started working on getting things ready for UnPub. My focus lately has been finishing games I’ve already started designing instead of following shiny new ideas. The 4 games I’m working on were all started at different times and coincidentally all have auction mechanics. So auctions have been on my mind a lot.
Auctions can be a tricky thing to design with because they give a lot of power to the players. If you have a very open auction where players are bidding on things that they do not know the value of, the results can be very lopsided. Even worse is when one player does know the value of things, they can easily get things cheaper than they should.
If the things being auctioned are very integral to gameplay and a player’s ability to win, it’s important that they understand the relative value of things before the auction. This could be as simple as listing the rarity of each item, so players know to bid higher to get the rare piece they need. Or having enough auctions in the game, so that messing up on a few will not ruin your chances.
Another consideration for auctions is how much you allow players to ruin their own chances of winning the game. If players can bid any amount of money on an auction, they can easily over pay and be out of the running. This can be held in check by giving players specific amounts they can bid.
The type of auction also has an impact on how much players can sway the game.
A once around auction gives players more information to use the later they are in the bid order. So earlier players will have to bid higher to try and win an auction if they think a later player also wants it. While the last player knows exactly how much they need to bid to win. It’s important that bid order changes in a game with once around auctions.
A blind auction can have a similar feel to a once around auction, but everyone is going first. So no player has the advantage of information before their bid. For this reason you can get a lot of higher bids if players think they are competing on an auction. You also need a way to deal with ties in a blind auction.
A continuous auction allows players to always outbid someone else. So prices can get much higher if two or more players are fighting over something. These auctions can take a lot longer, especially if players are allowed to make small incremental increases. This removes a lot of the player order advantage found in a once around auction. It can also incentivize players to bid on items they don’t want just to force another player to pay more. This can introduce a push your luck aspect because they must be careful not to get stuck paying for the item they don’t want.
Whatever type of auction you use, try to establish some boundaries to control the players. These could be visible boundaries like predetermined price limits or invisible boundaries like a very tightly controlled economy that doesn’t allow any player to be too far ahead in cash for an auction.