If you had £10 (or $15) which game would you get and why?

I'd buy something and make a giveaway with it.
That's where most of my game money goes these days. :O

skyhill, dead in bermuda, lego worlds, van helsing 3.

If I randomly had another $15 to spend, I'd add it to my current funds for Hyrule Warriors Legends (3DS). Still $13 short.
*goes bump trade topic*

I'd add another £0.99 and get The Walking Dead: Michonne or pretend I'm in the US where it is $14.99. I like Telltale games and think their TWD ones are the best games they've put out. I also like TWD in general and the character of Michonne. Ticks a lot of boxes.

Nekopara ( ͡~ ͜ʖ ͡°)

I'll probly be blind picking between Venetica and KOTOR2 :x

Banished. Because it's not only an impressive game for (what I believe I was told) a game that was made and/or coded by one person, but it's really beautiful, not demanding for my computer, and fun (although hard, so I'd probably end up cheating).

If you're looking for just general suggestions, though, I would recommend getting the HumbleBundle for Shadowrun Returns and Dragonfall. After buying the latter off G2A and enjoying the gameplay and story, I bought the former, too and found it just as incredible. I only regret that the stories are over and I have to settle for user-created content. No offense to modders...

Nekopara Vol 0 and Vol 2... to complete my Nekopara series...

And for research...

Grand Theft Auto: San Andreas

Reason Nostalgia

I'd take the the HB monthly. Is your money already on Steam ?

Frozenbyte Collection 2015.

Has Shadowgrounds, Shadowgrounds Survivor, Trine 2: Complete Story, Trine 3: The Artifacts of Power, Trine Enchanted Edition.

If I had to spend it now. I would get War of the Human tanks - Alter.
Because the first game "War of the Human Tanks" which I won here is so much fun if you like a battleships type of game.

However, I would spend on a Humble Bundle Monthly. and get 6-7 games for it.
Trade the once I don't want in the trading section.

And if I didn't have to spend it now, I'd keep it and wait for the summer sale on Steam.
Add some money and pick up a triple A title.

Dead in Bermuda
It's the first $15 game on my wishlist.

Stardew Valley or The Long Dark (you can get it that low or a bit lower on Sale)

The Deadly Tower of Monsters. The game looks like so much fun to me. I really dig the B movie vibe. And I'd like to support Ace Team who made Zeno Clash, one of the games that has surprised the most with how much I ended up enjoying it.

I'd have to throw in a little bit more to cover the sales tax but I have had Deadlight and The Binding of Isaac: Rebirth on my wishlist and $15 would be just about enough for one of those.

Rocket league, ori and the blind forest... it depends if u want to play solo or not...

Crusader Kings 2

Hell of a medieval family simulator. With tad of grand strategy if you care for it. But its all about family in the end.

Shovel Knight hands down.

Personally i'd get Disgaea good game get to throw people at people cool moves and been on a rpg kick lately.

Pony Island looked great from what little I saw of it

I would see what's on sale. If there is nothing interesting, I would save it and wait for a good sale on something I want.