Having a game that's easy to modify also spurs player interest. Be it the ability to replace models, add sounds or just simply change a texture or font. It allows the community to make what they want, and a large majority of game developers started as mere modders.
Dungeons of Chaos v1.2.85 Mod Money Apk Dungeons of Chaos is a retro-style 2D RPG that takes you on an epic journey with numerous spells skills and tactical combat to employ in order to win the battle against evil. Huge locations to explore (both unique and randomised). Totally ad-free IAP-free no internet or phone status permissions. Favourite fan quote: "If you were a fan of Ultima 345 or games of that ilk then this game will feel like coming home" Also note iOS reviews to date…
Community-created content implemented into games helps keep a game alive. With the Steam workshop, it's extremely easy to implement this nowadays - whether it be another few hundred hats in Team Fortress 2, or a fanmade map in Counter-Strike Global Offensive.
Having a developer console in the game is simply amazing. It can free a player's experience by letting them change settings they couldn't before, and change a few values to see how a game can run with things like low gravity or double damage with certain weapon.
Killcams haven't really been used in many games outside of Call Of Duty, which is a shame. They show insight towards your death, your enemy's whereabouts at the time, and gives you adequate time to realise any mistakes you may have made.