Need advice: FPS for a 7 year old

You mentioned he's tired of Minecraft. Has he played modded-Minecraft yet? It's easy to setup, you don't have to do it all yourself. My friends and I currently run Resonant Rise 3. You can get it via ATLauncher. There's literally so many mods, it's impossible to run out of things to do!

Well the games i was playing at that age aren't on Steam.. atleast not all of them.

But Star Wars Battlefront 2 was my main FPS back then, it's on Steam and it is easy.
Star Wars Republic Commando might also be a good "starter"

Something a lil' bit different, the Alien Shooter and Alien Breed games? They may not be First person but they are simple and fun.
Not sure if it's been suggested but, have you tried him on any of the Elder Scrolls? It is an easy game to pick up and play

I was playing Doom and Return to Castle Wolfenstein at about that age. Although it's up to you if you're ok with your son being exposed to themes like demons and Nazis. The graphics on both are outdated enough that they're not overly realistic but still look decent. Also they're both good fun to play.

Any Grand theft auto, killing hookers has never been funnier!
On topic: I would stick to adventure-games a la Crash Bandicoot.

Dig up an old CD called I.M. Meen. Basically a kid friendly FPS.

While I feel that it is important not to hide topics like violence, drugs/alcohol, sex, or mental instability from kids and instead give them thoughtfully guided experience in such areas which they are guaranteed to encounter at some point in their lives, I feel like a lot of games (though not all) in the FPS genre tend to just glorify the acts in a very base way to the player without really emphasizing reflection on what or why you are doing it. Many games do so in a sarcastic/satirical fashion, which I feel would be rather lost on most young children and instead create an intensely glorified perspective on hurting others to achieve one's own goals. That's all well and good if you think your child is mature enough to handle such topics and that you can have genuinely reflective conversations with him/her to put such things in context, but I get the sense that many who do allow their kids to play such games are doing so with very little parental involvement (and I'm not talking necessarily about OP here, I think he sounds like he's making an effort to contextualize things with his kids).

All that said, I generally choose video games for my young kids that I think will give them some form of educational or thought-provoking experience as opposed to just an addictive time-wasting escapist outlet. I also choose games that I can relate to personally, as I love to bond with my kids and talk about their games in an in-depth way which also often makes me see the games I play in a refreshingly different way. Again, I don't think a violent FPS is completely off limits here -- if it can serve as fertile grounds for you to bond with your kid and you think he can contextualize it in a responsible way, then that is awesome and well worth-while. And while I do personally enjoy a good fragfest now and again, I probably wouldn't really play those games in front of my kids because 1) I don't think they'd actually enjoy them very much and 2) I usually do so in a completely escapist way that I don't think affords many opportunities for me to teach my kids about morals and values.

And with my long rant over, I finally give some recommendations for first-person games that my young kids either love or I intend to show them:

Subnautica Early Access
An incredibly crafted ocean world with base-building, crafting, and survival elements. Hugely imaginative and wonderful for stimulating a love of nature, exploration, and conquering fear in an almost completely non-violent way.

Slime Rancher Early Access
An inventive and cute first-person exploration/building game

Eldritch
First-person shooter that is roguelike, very inventive

Tower of Guns
A first-person roguelike bullet hell game

In Verbis Virtus
A game that uses voice commands to make magic attacks, quite unique and nice atmosphere (though maybe slightly scary for young kids)

A Story About My Uncle
A first-person platformer that makes use of a grappling hook for movement

Penguins Arena: Sedna's World
A wacky snowball fight free-for-all. LAN-enabled, tons of Quake3Arena-like fun in a cute wrapper.

Jazzpunk
Your kid probably won't understand what's going on, but will likely still enjoy exploring the cartoonish world and will find it funny.

Minecraft
It's popular for a reason, great opportunities for creative endeavors in a first-person perspective

LEGO Worlds Early Access
First-person building/open world/exploration game like Minecraft, but LEGO!

RealMYST Masterpiece Edition
Fully updated MYST to modern first-person engine

Portal
Should be pretty self-explanatory, but great puzzles -- though might be a bit complicated for a 7-year old to figure out on their own

Someone mentioned modded Minecraft, which might be a good idea. There's also Slime Rancher, which is very forgiving, and absolutely cute. Very interactive (and is a bit educational in the way of money-management.?) I can't think of too many other games FPS-wise, since my brother's (who's also 7) mainly into the Lego games, and the few FPS titles he does play, that's all he's really played and likes. (He's huge into Mortal Kombat as well.)
When I was younger I was huge into Battlefront 2, and I've seen quite a few suggestions for that, so I'd love to back that idea as well.

I'm confused, does it have to be an FPS?
I'm asking because most of the games mentioned in the first post are not first person shooters...

This is what I have thought up so far:

• Tower of Guns: rouguelite FPS, no blood since you are shooting at cartoonish robots that disappear in a puff of smoke
• Terraria: colourful, more combat oriented than Minecraft, not overly difficult
• Dust: An Elysian Tail: metroidvania, colourful and imho safe for a kid
• Guacamelee: metroidvania, it has some difficult parts
• Tiny and Big: Grandpa's Leftovers: it has puzzle elements, might be challenging for a 7yo, I have no idea
• T.E.C. 3001: decent runner, another game I'd consider safe for a kid of any age

Lovely Planet.

Very age appropriate, with a cute soundtrack, and no real violence, from the TinyBuild guys.

edit: I'm surprised no one has mentioned this one yet.

He hasn't played the new Doom yet?! You should get him right on that! Some other good games he should play... Dying Light, Wolfenstein: The New Order, Day One: Garry's Incident, Killing Floor 2, and the CoD games.

Seriously though, some more appropriate titles... Barony, Tiny Troopers (It's not an FPS, but... I just thought that it could be something he might like.), Orc Slayer, 3089 -- Futuristic Action RPG, Shoppe Keep, Catlateral Damage, Creativerse... can't really think of anything else at the moment. They're not all shooters, but maybe he'll still enjoy one or some of them?

Child of Light.
Metamorphabet.
Windowsill.
Lume/Lumino City.

edit: for my mind is going.
Everything

Doom 2 - Type in iddqd and let him go nuts. low res violence and godmode are fun.

You should buy him a Wii U and that Splatoon game. That's very popular with elementary school kids in my area.

I was thinking PvZ Garden Warfare or TF2

None of those are FPS.

1.- Let him play Hitman...
2.- He will learn a lots of things...
3.- He will be the best in the School...
4.- He will be the best killing ppl for the goverment
5.- Profit... or he will kill u.

I don't have a suggestion as yet, but I would strongly recommend against Alice: Madness Returns due to the high difficulty level. It's a platformer/3rd-person-shooter that is only for K+M unless you have a Steam Controller and a lot of time for experimentation.

a story about my uncle,
(no shooting, no gore, just you and an unknown world, a jumpsuit for extreme jumping and a grapple gun to swing between objects like a monkey. Game is focused on exploration rather then a story. Game gives you infinite tries to do it again and again. Might also be a nice game for your son to level up, and start using a 2nd finger to preform jumps...

Any Serious Sam game on Tourist (aka "Even My Grandma Can Beat It") difficulty maybe? Serious Sam 2 in particular is SUPER cartoonish and ridiculous. As a bonus the games have the option of turning all the blood and gore into flowers for extra child-friendly silliness. In Serious Sam 3 you can even turn it into candy. XD

I'd highly recommend ''Star Wars Jedi Academy.'' Not terribly violent, and while the lightsaber is exclusively 3rd person, my favorite thing to do with it when I was little was to use cheats to give myself guns, or turn into Boba Fett, and then run around in first person mode with a heavy repeater. He'd absolutely love it, I'm sure. Multiplayer is also amazingly fun, and there are some great combos that you can execute with the lightsabers. I don't foresee the AI being able to gank him.

Aside from that, I'd suggest ''Sanctum'' or ''Orcs Must Die'', though those may be a bit difficult due to the nature of waves, or a more heavily modded ''Minecraft''. Personally, I've never played it, but ''Tower of Guns'' looks pretty wonderful from what I've glimpsed of a friend's play-throughs.

Disregard the hate. I'm sure that you'll raise a perfectly healthy kid. After all, the individual should be able to determine their own level of tolerance for violence, and a child should be able to talk about such things with their parents before all others. if he ever has moral qualms or feels guilty about what he's doing in the games he's playing, he'll probably come and talk to you.

Wrack would be a good option for a straightforward FPS. It's fairly cartoony and pretty simple, although it may be a bit too fast paced.
Half Life 2 wouldn't be bad either since you're up against aliens, although again it may get a bit too fast at times (or not, haven't tried it on easy). Thankfully you can mod/customize the hell out of that game so you could probably make it pretty forgiving through that.
Just Cause 2 would be a pretty good one as well as it's fairly unrealistic and lets the kid do whatever he wants. The killing isn't as much a focus as just blowing stuff up and driving/flying/boating around.
Warhammer 40k: Space Marine is a little bit gory but hey, it's orcs.

Those would be my suggestions, none are overly complex or adult themed and can all be picked up reality cheap. The first two are FPS, the second two are third person.

quake2 - less scary then 1 and less bloody then 4

Get him a Wii u and Splatoon? :-)

Teach him chess Try Worms Ultimate Mayhem.
U can Split screen with him on the game up to 4 players with 1 keyboard and mouse.
Its child-friendly and funny.
Not exactly fps but i know i enjoyed it as a kid.

I don't know if anyone mentoned it or not yet, but if you have enough money, you should bay a wii u with splatoon, cause that's the friendliest shooter I know, though it's third-person, so idk if that counts?