History:
PG3D: Pixel Gun was launched on 2012 on mobile platforms, as an infinite minecraft-styled zombie shooter. The game was kind of fun, until multiplayer was released, and it was better. The forums were made and Rilisoft listened to everyone, including bugs, balance, etc. Then armor was added, so it would make you harder to take down than usual. It was kind of broken at that time, and players were complaining. But Rilisoft stopped listening. Later, on December 2014, alot of fan-favorite weaps were taken off the armory and gems came into existence. That was basically the doomsday for PG3D. And from that point onwards, Rilisoft buffed gem-bought weaps, and nerfed coin-bought weaps. The classic lobby theme, BAMALAM, was replaced with some orchestrated ambient theme. Later on, more fan-favorite weaps were taken down, like the big buddy, and things were even more broken.
TF2: Team Fortress was originally a mod for the classic 90's game, "Quake". Soon, a Valve employee took interest on the mod and invited the makers to create a stand-alone version called "Team Fortress Classic". It had a variety of classes, such as Soldier, Heavy Weapons Guy, Field medic, Engineer, and so on. Each class had their own set of weaps and purposes. It included gamemodes and maps such as CP_Dustbowl and CTF_2Fort. Later on, it was announced that there would be another Team Fortress game called "Team Fortress: Brotherhood of arms". It was then never spoken of by Valve ever since the trailer at E3. A few years later, in the 21st century, we got Team Fortress 2 in 2007. With a more cartoon-ish art style, compared to the more realistic, serious art style we had before. TF2 was then constantly updated with weapons, maps, gamemodes, and most importantly: HATS. Later on, it formed a community like no other, where people made custom maps, gamemodes, weapons, and hats that were waiting to be confirmed to be put in the game by Valve. There were events such as "WAR!", "Scream Fortress", and "Smissmas". but then Ovetrwatch was announced, and about 75% of the community left TF2 for overwatch. Later on, in mid-2K16, we got the Meet your match update. Which broke the quick-play system, nerfed alot of weaps, and added competitive mode. On the 2nd day, we got "Meat vs Match". Also known as the Heavy vs Pyro WAR! event. At first, it was a broken update. But over the next 2-3 weeks, all of that was fixed. Pyro eventually won the event and is now awaiting a new class pack on the next update. The playerbase went from millions of players, to about 39k.
Gameplay:
PG3D: This game has alot of weaps for use on the battlefield. Sometimes you're working with a team to win, other times, you're forever alone. Inflicting headshots deal about 2-3x more damage than a bodyshot. This makes aiming a top priority when trying to take down your target. Weapons were split into six categories: Primary, which included Rifles, SMGs, Machine guns, and Shotguns. Back up/Secondary/Sidearm, which only had pistols, revolvers, and a portable DJ station. Melee, which... wait, does this category need explaining...? No...? Ok. Special, which consisted of Flamethowers, Sharp Object throwers, and a bunch of other Sci-Fi stuff. Sniper, which had Sniper rifles and bows. And Premium, which has Rocket Launchers, Grenade launchers, A (Removed)Cannon, and a bunch of other things that I can't even explain, I mean, WHAT DOES A PIG HAVE SOMETHING TO DO WITH EXPLOSIONS?! I MEAN, COME ON! Gamemodes include: TDM, Win by making sure your team has more kills than the other. DM, which is a free-for-all where you need to have the most kills, Co-op survival, where you compete to have the most damage dealt to monsters... Why is it even called CO-OP survival when you're COMPETING??? Deadly Games, which is basically HG with guns. Flag capture, which is basically CTF. Point capture, which is basically 5CP on TF2, except you defend your points instead of taking over the entire map. Basically KOTH with 3 Cps.
TF2: This is a team-based class-based game, which has 9 classes, including Scout, who runs the fastest, and can double jump. Soldier, who can Rocket jump, which is a skill to be honed in this game. Pyro, who burns people, extinguishes teammates, and reflects non-bullet projectiles. Demoman, who uses a grenade launcher, and uses a sticky bomb launcher to set traps, or Sticky jump. Heavy, who mows down enemies with his minigun, and eats a whole lotta sandviches. Engineer, who builds sentries to defend a point, builds dispensers to heal teammates and provide ammo, and builds teleporters to lead his teammates to the front lines. Medic, who can heal and has different healing guns that have different Ubercharges. Sniper, who eliminates from afar, and throws urine at people. And Spy who can turn invisible and disguise as enemy and friendly players, but is the hardest to master. Gamemodes include: ATK/DEF, where RED team has to defend their territory, and BLU has to overthrow RED and take over. KOTH, where a team has to defend the middle point for 3 minutes. PL, where BLU pushes a bomb cart to detonate RED's base. PLR, where each team delivers their own bomb cart to the enemy's side. 5CP, where a team has to take over the entire map by capturing points. TC, where each team defends their territory from the other team. PD, where each team has to deliver enough beer to aliens(Yes, I'm serious). PT, which is basically soccer with guns. SD, where a team was to deliver a rocket into space with Australium.
Story:
PG3D: A man is sleeping in his barn at San Blocksisco. At 4:15am, he hears someone digging on his farm. He pulls out a gun and looks out, only to find a horde of zombies. He finds one of them had an Uzi, and sets out to kill the rest of them. Someone cries for help, and he rushes to the cemetery. He was too late, only to find a dead person, and an evacuation plan. He sets off into the city, only to think he needs to enter the hospital, which was pointless. He finds a helicopter, damaged, flying to prison island. he follows it, only to see that it crashed. He rushed there to help, only to be too late again. He finds a map to Area 52, and goes there. He finds someone actually alive there, trying to escape, and he tells him the source to the infection. He then finds a portal and goes through it, going to another world. A girl is being attacked my a mutant chicken, so he saves here. She tells him about the zombies and the portal. And they decide to head to the dragon's island. They then defeat the dragon and are reminded about their cubical form. He brings them to another world, near a castle. They confront the wizard, and are told about why they are cubical in the first place. He brings them to a space station. They find a Saucer docked nearby, and set off the Earth, which appears to be fine after the infection. they are then confused for aliens by the humans. They find the creator, who was responsible for the world's cubical form. The hero then confronts the bug, and then becomes the bug.
TF2: Zepheniah Mann had 3 sons: Redmond, Blutarch, and Gray. Gray ended up being underweight on birth and his father wanted him slaughtered. Until Gray was abducted by an eagle. Years later, Zepheniah entrusts his land to Redmond and Blutarch before death. The two fight over the land. They then each hired 9 mercenaries to wage war. As the years go by, they get old. The Engineer's grandfather had invented a machine for them by that time, that lets them live forever. They then meet their lost brother and are assassinated by him. He then proceeds to build an army of his own mercenaries that run on cash as fuel. The mercenaries then unite together to defeat the common threat.
In my opinion, I like both. but I prefer TF2 more than Pixel gun.