Afterall, if you’re Rank 1 on the Leaderboards, you should have earned it. Since Glory is serving as our Leaderboards, using a system that would suggest the higher ranking Alliances are more likely to win made sense. We had several discussions about potential directions to take Glory and what systems to use.Ī system like Elo (initially popularized as a chess ranking system) provides a single rating that can be used to predict the winner between opponents. In order to do that, Glory gained/lost needed to be updated. In order to preserve the competitive integrity of our Leaderboards, we felt that it was important to start using Glory. The old system did not use Glory as part of its calculation. The Leaderboard was not Part of the Evaluation Ready for another fun fact?: If your Alliance is sandbagging in the new system, it may result in increased queue times as the system waits to find another sandbagging Alliance for you. It’ll find Alliance A another Alliance with a large Ratings delta in its players while protecting B from an unfair fight. The result? The system now knows that Alliance A and B are wildly inappropriate to match. The new system now also compares the delta within an Alliance and tries to find other Alliances with similar deltas. So, we’re adding a second comparison to the Ratings formula. But we do want to address the sandbagging issue. Sometimes you just don’t have enough players at close Ages. We don’t want to limit Alliances to bringing specific compositions to War. The O/D Ratings may look fair, but this is not a fair fight Alliance B is going to lose this War. Seem familiar? I’m sure all of us have been in Alliance B’s position before. If we only checked the percentage delta between two Alliance’s O/D Ratings, we may end up making the following match:Īlliance B: 1 Cold War with a mix of Enlightenment+. Sandbagging/Imbalance in Alliance CompositionsĪs with other team-based games, there is an ability to “carry” in DomiNations. Start upgrading your neglected Catapults!).Īdditional fun fact: The new system would not consider a 10% delta a “good” match. So, we’re updating the system to compare Ratings by the percentage delta rather than absolute values.įun fact: If your Alliance has a ~10% higher Defensive Rating in the new system, your Alliance’s chances of winning are increased to 60% (Yes, defense matters. We ran some tests internally and discovered that when we match based on a percentage delta between those same Alliance’s O/D Ratings, we actually get a much stronger predictor for winning. That old system compared the absolute value of your Alliance’s Offensive/Defensive (O/D) Ratings with other potential Alliances. But, we knew this was an area where we could improve match quality. There was some directional value in its ability to predict win rate. However, the method that the old system (the current matching system on live) used to compare the final Ratings with other bases wasn’t a great predictor of win rate. Everything on your base contributes to these Ratings. Method for Comparing the Offensive and Defensive Ratings of a Baseĭid you know that the matchmaking system creates a Rating of your base’s offensive and defensive capabilities? It does. The Leaderboard was not part of the evaluation Sandbagging/Imbalance in Alliance compositions Method for comparing the Offensive and Defensive Ratings of a base Let’s take a look at the problems in the current system and break down each of them: It’ll be clearly marked and I won’t fault you for skipping forward, after all you’ve got a Nation to run and World Wars to fight.ĭidn’t skip forward? You sure? Cool. If that’s not appealing, there’s a tl dr “what are the changes?” if you skip to the end. We’re going to talk about how the old system worked and how the new system is attempting to solve problems. I’m trying something new with this Spotlight we’re going to go deep. The high level goal is twofold: Improve the competitive integrity of World War and improve the match quality.īear with me. Why Change Matchmaking? What are the Problems We’re Trying to Solve? There was a change in 2019 that was introduced in offficial forum The only way a member’s strength can be increased is if they upgrade their troops, defenses, war tactics, or other contributing offensive and defensive capabilities. Base layout does not affect this calculation. Strength is based on each member’s attacking power (Troops and Barracks upgrades, War Tactics and Generals) and defensive strength (defense buildings, walls, traps, and generals). How is strength calculated in a World War?
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