First thing first, get Cheat Engine http://www.cheatengine.org.
If you are new to this take the Cheat Engine Tutorial
Use 4 Bytes and Exact value for both games
Epic War 3-Xp and gold hack
1. Start a battle.
2. While in the battle search for a value (xp or gold),
You might want to enable speed hack to pause the game when you are searching so the value doesn't change.
3. When scan is done let the game resume and kill someone.
4. Search for the new amount.
5. A few results will come up, it there are to many repeat steps 3 and 4.
Change the value to a number such as 10000, 100000, or 1000000.
Note: Do not try to change the value to a huge number like 8943570923475. The game will crash. Cheat Engine will prevent that by only allowing numbers in the billions but sometimes it can glitch and allow more than that.
6. Resume the game. Look at your xp or gold.
Pizza King 2-Money hack
1. Get some cash.
2. Multiply the number by 8.
3. Search for the number (40x8= -->320 <-- search for that number).
4. Get some more cash.
5. Multiply the new number by 8.
6. Search for the number.
7. A few results will come up, select them and change their values to a multiple of 8 (if you want 80000 cash change value to 800000).
8. Buy yourself something pretty