A single run is over in a few minutes. To keep you going after that, there are ranks, a daily challenge, points and goals. All of it is free.
You start on rank 1. Win a run on your highest unlocked rank and the next one opens, up to rank 8. In the menu, < and > next to Rank choose the rank your next run starts on; below it you see what that rank changes.
Every rank adds one twist and keeps all those of the ranks before it:
| Rank | New |
|---|---|
| 2 | enemies get tougher faster from wave to wave |
| 3 | only 15 lives instead of 20 |
| 4 | stronger boss |
| 5 | faster enemies |
| 6 | more armored enemies |
| 7 | pricier tower levels, and relics make the enemies tougher (10 % instead of 7 %) |
| 8 | only 10 lives |
Daily Challenge in the menu starts the challenge of the day. The seed (that is, cards and waves) and one modifier follow from the date, for example More armor or Faster enemies. The modifier is one of the twists from the rank table; apart from that the rules of rank 1 apply. Below the button you see the modifier and your best score of the day. You can play the challenge as often as you like (Daily Again on the end screen); your best run counts.
Every run ends with points. The game keeps best scores per rank and per day of the Daily Challenge.
| For | Points | counts |
|---|---|---|
| every wave cleared | 100 | always |
| every tile of your road | 20 | always |
| victory | 1000 | only on a win |
| every life left | 25 | only on a win |
| every second under 10 minutes of play time | 2 | only on a win |
Example: a win with 18 lives and a road of 21 tiles after 8:12 minutes gives 1000 (waves) + 1000 (win) + 450 (lives) + 420 (road) + 216 (time) = 3086 points.
Under Stats → Goals you find 11 goals and your progress. Every goal reached gives you a new castle roof you can use in every mode (button Castle roof on the same page). Goals do not unlock anything else.
Which towers and relics you unlock by playing is explained under Towers and relics.
Stats in the menu shows your runs played and won, the best rank you won, how many towers, relics and goals you have, and your best scores. Only finished runs count. Stats and save live on your device; there is no account.