I am hearing some rumors being reported today after seeing a spike in chatter within the gaming community on today. I have not seen the third-party game tracking tools show this much rumor in a long time. I will say the tracking tools are way more heated than the chatter I am seeing, so something might be off here. Again, I saw some initial chatter from within the gaming forums and on this site starting on today.  Now, I decided to cover it on everyday even if the chatter was not at the levels that would warrant me posting something.
To be clear, Wendgames' radar has not confirmed any release is officially going on.
Mod, cheat or hack tracking tools:
Let's start with what the tools are showing:
Bila sensor:

Souma sensor:

So most of these tools are incredibly heated, signaling that they are showing available mod, hack or cheat for the game.
Wendgames chatter:
Here is some of the chatter from various comments on this site and facebook groups since the release:

Holy shit this is the biggest gaming news of the year

I surprisingly knew about this game's existence before this!

From someone who actually played it, it's fine, just a pretty average  game. Unless you're chomping at the bit for new experiences, if it looks interesting to you just play the first one.

Let's make a little summary for the game:
GAME INFO
Name of Game: Gun Killer: Survival
Version: 6.6

Name of the cheat, mod, hint, tip or hack:
-Unlimited Money
-Mod Menu
-Money increases instead of decreasing
-Massive attack
-God mode
-Free Purchases
-Free Shopping
-Enemy does not attack
-Weak enemies
-Unlimited coins/hearts/gold/gems
-Dumb Enemies
-Free Store
-Stats Boosted
-Mega Mod
-High damage/No Shake No Recoil
-mod rewards
-Damage & defense multiplier
-Game speed multiplier
-Unlimited Ammo/no reload/No Recoil
-radar hack/Infinite money
-Unlocked/all levels unlocked

Game description:
Welcome to the Gun Killer: Survival! This is a free funny first person offline survival shooting game.

Features:

•▶ Free weapons: Get random weapons for free.
•▶ Random weapons: Mace, Desert Eagle, Pistol, AK47, M4A1, MAC10, P90, AUG, M95, Revolver, Machine Gun, AssaultRifle, Shotgun.
•▶ 3 maps: 3 different maps (Maze Wall, Bridge, Center).
•▶ Death effect: Real strike feeling, different weapons get different strike effects.
•▶ Supply system: Smash boxes to get bullet supplies for random weapons.
•▶ Adaptive device: Adapt all devices, including tablets and mobile phones.
•▶ Leaderboard: Compare scores with global players.
•▶ Achievement: Train your brain to achieve all achievements.
•▶ Animation: Realistic animation effect.

How to play Kill’em All: Survival 3D?

•▶ Get weapons: Get three weapons at random before the game starts.
•▶ Get supply: When the number of weapon bullets is insufficient, you can get random bullet rewards by smashing wooden boxes.
•▶ Level task: Destroy all the Skeleton King warriors and mutant spiders on the map.
•▶ Sensitivity setting: The sliding sensitivity can be set in the game pause panel, setting a most suitable sensitivity can better aim and shoot the target.

The game is completely free. If the game can bring you some joy, please give us more comments, and we will continue to update and improve more game content! Thank you!

Gun Killer: Survival MOD APK Version 6.6

Manual Steps:
1. Install Modded APK
2. Play

Download Now
In any case, the best mod, cheat or hack for now comes down to these tips:

1. The first cheat or exploit is to not skip the tutorial, even if you're an advanced player and this is your second, third, or fourth alt account. The beginner's tutorial gives you lots of free stuff and rewards, which are some of the most valuable items in the game.
2. Keep watching the ads and collecting more and more daily currency rewards.
3. Play daily events for more chances to get better currency.
4. Practicing to get better time in PVE or offline mode.
5. Don't skip any unleashed events.
6. Use ad packs from the store to get currency. And free packs can be obtained every certain number of hours.
7. Watch YouTube or Twitch videos: gamer's gameplay style and tutorials.
8. Play against many different opponents with many different gameplay styles.
9. Join the game community on Discord, Reddit, Facebook, or other social media platforms where you can share your gaming experience.
10. Are you a competitive online mobile gamer? The secret to becoming a top mobile gamer is to first have at least a medium-range phone or a top-of-the-line phone. Without a good device, you will never be a good gamer. Next, you need a superfast internet connection. If you want to do exploits against other gamers online in real time, you need incredible internet connectivity, or else lag will become your best friend when your ping goes up to over 300 ms. And finally, you need to be me, Wendgames, the greatest mobile gamer the world has ever seen. If anyone else tells you anything else, they're lying. Skills only come through persistence with great devices and fast connectivity to react appropriately against enemy players.