Editor’s note: DeNA’s Japanese RPG card battler has been a hit for the mobile-social gaming juggernaut since release. As Inside Mobile Apps previously reported, Blood Brothers’ events feature is wildly successful for the game. In a third guest post from Kevin Oke, lead designer at both Adrian Crook & Associates, a social-mobile game design consultancy, and PlayRank, a second screen startup, he analyzes the successful components of Blood Brothers from an outsider’s perspective. He previously wrote guest posts for Inside Mobile Apps which analyzed Supercell’s Clash of Clans and NimbeBit’s Nimbe Quest.
DeNA Mobage’s Blood Brothers for iOS and Android recently celebrated its one year anniversary, and is continuing to monetize very well, with an ARPU that has grown every month since release. With this milestone in mind, now seems like a good time to take a dive into the game and highlight some of the things this collectible card game (CCG) does well.
Although it’s certainly firmly rooted in the conventions of the CCG genre (“hands-off” battles, card fusion, gacha) Blood Brothers does add its own touches of innovation, as explained below.
Blood Brothers excels at player vs. player (PvP) on a number of levels, one being surfacing. Good surfacing ensures that players are not only made aware of key AEM (Acquisition, Engagement, Monetization) features and the benefits they stand to gain by using them, but also pushed towards these behaviors via smart timing and offering incentives. This is generally done through contextual dialog boxes and limited time promotions.
As PvP gameplay is traditionally a strong source of retention and monetization, it’s especially important to do surfacing well. Blood Brothers keeps PvP at the forefront of the player’s mind with random PvP battles while the player is progressing through a level. These random battles are effective in several ways:
- Surfacing of PvP gameplay to get the player interested in it and strengthen its ability to help monetize and retain players.
- Increases PvP’s effectiveness as a morale sink (morale being the rechargeable energy resource needed to engage in PvP and raid boss fights).
- Clear, simple goals and incentives (winning streaks reward the player with items) — these suck the player in, extending sessions and draining the player of their morale as they attempt to extend their win streak to hit the next reward.
Although conceptually not unique to Blood Brothers, the inclusion of “all-out attacks” (more effective than regular attacks but three-times more costly in terms of morale) and high level raid bosses that are susceptible to them further help to keep morale a precious resource and make a micro-transaction refill more tempting.
Lastly, compared to the confusing and convoluted user experience (UX) that precludes getting into a PvP match in Rage of Bahamut, there is little such friction in Blood Brothers. Opponent selection filtering options are eliminated in favor of pre-determined choices, and it’s immediately clear to the player what’s at stake with rewards, and how their deck stacks up against their potential opponents. (more…)