Entities to purchase

All these are earned through day to day play of the game. A player earns random chests of different colors (bronze, silver, gold as an example) with various boosts. To accelerate a player improving their team chests can be purchased for immediate use in the game.
Also the higher level your team becomes additional playing stadiums open up with more opportunity for better chests earned or purchased(platinum, diamond etc.)

We are creating games for cell phones called Freemium games which are free to download and play but offer small in-game purchases known as Microtransactions. 
Microtransactions allow players to purchase additional virtual goods like extra gameplay levels, cosmetic skins (outfits and looks for gameplay characters), exclusive gear (armor, shields, special weapons or character skills), loot boxes, or in-game currency. In-game purchases will vary. Some enhance the players' power or speed up their progress within the game, while others are entirely cosmetic. Since the purchases are usable within the game, Microtransactions are especially tempting for avid, devoted players. 
Advertising within the game is another way our games make money. Advertising model games are typically free to play, but contain ads as a means of revenue. Display ads are the most standard type, which include static ads, dynamic ads, video ads and pop up ads. Interstitial ads are ads that are shown in intervals and are very common for games that have level-up progression since they can be displayed between levels where there is a natural break in gameplay, making them unintrusive. Incentivized ads offer an in-game incentive, like in-game currency or a boost in exchange for viewing an ad, normally a video ad. Contexual ads are integrated into gameplay, often as branded gameplay objects or branded storefronts within scenery in the game. 
Mobile devices play a key role in the overall growth of the digital marketing spend worldwide. With a surge in the number of smartphones and tablets, mobile advertising has become a primary mode of digital advertising, which is both cost effective and conversion oriented. 
According to the IAB Mobile Advertising and Revenue Report, nearly three-quarters of all internet time (71%) is spent on a mobile device. 
The main costs to our advertisers on our mobile video games are:

1. the average price per thousand views
2. cost per install
3. cost per click
4. cost per action

One of the primary metrics for digital advertising, and specifically mobile app advertising is the average CPM, which stands for Cost-Per-Thousand
The cost of mobile ads may vary, depending on the industry, channel to display, location, period (For example, on Christmas holidays, the cost of showing your target audience is increasing). 
So it's no wonder that the mobile advertising spend now accounts for two-thirds of the overall digital spend. 
Google Ads, Facebook and Unity (in Europe, the Middle East and Africa) are the top 3 mobile advertising channels in terms of ROI. Forget just banner ads - mobile advertising formats today include SMS text messages, interactive ads, rich-media ads, push notifications, click-to-call ads and in-app interstitials. The selection of a mobile ad platform depends on the target audience. Our team understands the needs of our audience and will choose a platform for each game that maximizes our ROI.
Gamifying Mobile Ads 
Gamified ads are advertisements that people can interact with as though they were playing a game. For example, if you're advertising a new app that you produced, you could run gamified ads so that users can interact with, or "play" your app as if they had downloaded it.
Because about two-thirds of Americans play video games and 62% install games on their phones, gamifying ads are a great way to advertise to this audience.

With the Millennial generation having grown up on games, gamified ads are more entertaining and create a better ad experience for users