We've got a medium-sized update for you today, which includes some bug fixes, and changes and additions to some of the core systems of the game, based on your feedback.

Changelog for version 0.1.15

New Feature: Book Binding

The Book Binder is an upgrade you can now purchase on the Library building. It will allow you to convert stacks of duplicate Skill Books into other random books. With enough books, you can even just craft an Encyclopedia to train any skill.

New Feature: Infinite Bonus Upgrades

The three unlockable town buildings now have a special upgrade that can be purchased multiple times, with an exponentially scaling cost. They each grant +1 to three different attributes for all heroes.

Item Bundle Changes

Our goal with these changes is to remove some of the hurdle for new players in selecting from the available item bundles, and to give more freedom to choose various mission items without worrying about cost.

• Item bundles when starting a mission are now free, but the number of slots for them has been reduced.
• You can only select one of each type of bundle.
• We have removed some of the more "advanced" bundles from the starting list to help guide newer players into selecting more useful stuff early game. Additional bundles can be unlocked via town upgrades.

Camping Changes

Our goal with these changes is to increase the choice of paths you can take during the mission, instead of tending to always just go for the path with the most camps.

• Camping Supplies have been changed to a new item: Stimulant Pod. These allow you to restore 15 stamina to all allies at any time from the party item menu, as opposed to requiring a camp to use them.
• Camp sites have been reduced to only appear before the mid and end boss fights, but they now restore 30 stamina for free.
• One Stimulant Pod is now a guaranteed reward from Extreme Danger combats.
• You can bring a free Stimulant Pod via an Item Bundle when starting a mission, and of course find them in battle or chest rewards.

Hero Balance Changes

• Cain's Chaos Storm level 3 now returns 25% of MP instead of 50%.
• Cain's Unstable Generator now also reduces MP healing he receives by 50%.
• Downed allies now also count as "critical" for skill effect purposes.

Bug Fixes/Other

• Missing achievements have been added for the recent Hero Pack heroes (Clown, Linebacker, Maelstrom). If you've already rescued them, the achievements should be awarded the next time you visit town.
• Fixed bug where Cain's Unstable Generator level 2 effect procced at level 1.
• Fixed some display bugs with Darius and Samuel's gun sprites' visibility timing.
• Vendors now play a "ka-ching" sound when you buy something, instead of no sound.