Tyranno Ex returns to the WBC for a third run after a six-year hiatus. In Tyranno Ex players take control of primordial species, manipulate the world's environments and set one species against another in an attempt to score points each round for each of their species that survives.
A game will consist of four to seven rounds. Each round begins with players choosing one or two species from four that are available and place them on the board. The 28 species are represented by cards showing an illustration of the species and three circles depicting one of the seven different factors that the species will need to survive and thrive. The players will also have 12 disks each showing one of the factors.
In the Environment phase the players will have three to five chances to place one or two of their disks into one of four boxes that will determine which factors will be in effect this round. At the end of the environment phase each box will usually have 2-5 face up disks, all of the same factor, and usually 0-4 face down disks that may be of multiple factors. Any species that cannot at this point match at least one of the symbols on their card to one of the factors face up in the boxes does not survive and is removed from the board.
In the Battle phase each player will have an opportunity to choose if they want one of their species to attack another species. Each species will roll a number of dice equal to the number of face up disks showing a factor that matches a factor on their card. When one species has twice gotten more hits (dice showing a number equal to or lower than their strength) than the other it is declared the winner and may increase in strength while the loser may be eliminated or may lose strength and be suppressed for a turn.
In the Scoring phase each surviving and suppressed species moves up one or two rows on the board and then (unless suppressed) scores between 3 and 13 points, depending on how far up the board they have progressed. A new Round then begins unless all 28 species have already been chosen and one player has no species left on the board. The player with the most points is the winner. If there is a tie, then the tying players each choose their most powerful species for a final battle of dominance, with the victor winning the tie.
There will be three heats. 4-player games will be the default. The top 16 players, or half the number of entrants (rounded down to a multiple of 4), whichever is less, will advance to a semifinal. That means if there are 30 players, only 12 will advance (half of 30 rounded down to a multiple of 4). Players must have at least one win, or a 2nd place (with greater than one quarter of the total points in a 4-player game or one third of the total points in a 3-player game), in order to be eligible to advance.
Tie breakers for advancement:
- Most Wins
- Win in 1st heat played
- Win in 2nd heat played
- Win with best % of total points in game
- Second place finish with best % of winner's score
The event will use the following official FAQ and errata from the old Avalon Hill:
- 6.3 /6.5 After placing two disks in one Evolution row, there are still three other Environmental rows that were unaltered but disks in those Evolution rows still outnumbered those in their corresponding Environment rows which were empty. Does this constitute an Environmental change? A. An Environmental Change occurs only in the row where the new disks were placed. Anytime the disks in the Current Environment row are changed, an Environmental change has occurred, even if the type and number of disks in the Current Environment row remain the same.
- 6.5/6.7 Does extra placement result in an increased strength bonus? A. Only on turn 1. Thereafter, the turns last longer than three rounds and Strength gains are not possible after three rounds.
- 7.1 Does "oppposing" animal refer to opponent's animals only? Or can you attack your own animals? A. You may not attack your own animals.
- 7.6/13 Do suppressed animals suffer ill effects in combat when using the optional battle rules? A. Only to the extent that its strength has already been reduced. Note that it could be suppressed again and lose yet another strength level if it has one to lose. An animal which is suppressed twice and has no additional strength levels to lose, suffers no additional penalties. If a suppressed animal wins a subsequent battle it could gain back the strength level it had lost. However, winning a battle does not remove "suppressed" status and thereby enable the animal to score.
- 8.13 During a Double Advance, do animals advance one column at a time or do animals in the "6" and "9" columns arrive in the Special Spaces simultaneously? A. All animals in the "9" column advance to the Special Spaces before those in the "6" column.