Training grounds

The training grounds is a simple building which has a couple of useful functions. It costs 500 steel and 6m to build, and you must have player level 8; unlike most buildings, it only has one level. The training grounds provides access to three functions: training battles, hero training, and special training.

## Training battles

The first function of the training grounds is to fight training battles. These are like regular battles, but without losing any of the troops that you use, so it's a great place to try out new troops and see how they work without any cost. There's no rewards, but your hero can still gain experience normally. You can fight a maximum of 5 fights per day, and you can choose an easy, medium, or hard difficulty level, or choose to fight against another player.

## Hero training

The second function is to train your heroes. During training, your hero will automatically gain a certain amount of experience, but you can't use them in battle (or do certain other things, such as train them in the Hall of Heroes), so this is a great option for overnight or heroes that you aren't currently using. You can choose to train your hero for a a period of 3, 6, or 12 hours; once the training has started, it can't be cancelled, so choose carefully!

When you first build the training grounds, you have one level 1 training slot, which gives 10 experience/hour. Additional slots can be unlocked at a cost of 750 gold for second slot, 2000 for the third, 3500 for the fourth, and 5000 for the fifth. All slots can be upgraded to increase the amount of experience given; the upgrade costs are shown in the table below. Note that the upgrade costs are the same for all slots.

## Special training

The third function, released February 2020, is a research menu to unlock skills for the Infantryman, Stormtrooper, Crusader, Ranger, "Hammer" walking machine and "Stag" walking machine.

To unlock skills, you need to spend skill manuals to increase your Veteran Level, which is on the "Increase" tab. Each Veteran Level requires multiple investments on an increasing number of skill manuals. This process will also provide Veteran Medals, which are a currency used to buy skill research.

After unlocking research by reaching the necessary Veteran Level, you will also need to buy the research, which costs additional skill manuals and Veteran Medals. The table below shows how many manuals are required for each Veteran Level and how many manuals are required to research skills at that level.

We've confirmed the costs through Veteran Level 4 so far. If you have additional details, please let us know on the discord channel.

To buy and use unit skills, you need to research them on the "Skills" tab. Each unit type has 8 skills available and four slots in which to equip skills. These slots unlock when the unit reaches: Level 10 (1st), Level 11 (2nd), Level 13 (3rd) and Level 15 (4th). Similarly, each skill can only be equipped into a specific slot. As of April 2020, one of the skills has not yet been released. For detailed research costs, please visit each unit's page.

## Veteran level details

Here is a detailed breakout of the skill manual cost for each veteran level. Each investment step provides one Veteran Medals. Reaching the next Veteran Level provides 10 Veteran Medals.