Layered ? Like that ?
http://www.dafont.com/americorps.font
http://www.dafont.com/spy-agency.font

If it's an open source game, why don't you look in the code to know the name of the font used ?

Save the TTF files in an other directory.

First you download.
Second you unzip
Thirst you install
Last you use

Dans le premier cas, pour un usage professionnel, un don de $10 semble raisonnable.

I prefere Market Deco (the 3st)
http://reves-de-menhir.vacau.com/mirage/fichiers/ml01v102-mirage-polar.pdf

http://www.dafont.com/clemente-pd.font?fpp=100&af=on&text=UN+un
http://www.dafont.com/fabada.font?fpp=100&af=on&text=UN+un
http://www.dafont.com/amorino.font?fpp=100&af=on&text=UN+un

and many others...

http://www.dafont.com/cutty-cre.font

It's not a problem of font. You can do that with many verctorial drawing software like Micrographix Draw, Inkscape or others, linking a text with a form.
But it's difficul to have a good result with a script font.

The other way is to have talent and to do it by hand with a pen.

The best way is to compare with an other font with the same quality and the same diffusion.

Something like that :
http://www.dafont.com/hearts-brk.font
http://www.dafont.com/heart-heaven.font?fpp=100

http://www.dafont.com/veteran-typewriter.font
http://www.dafont.com/true-crimes.font
http://www.dafont.com/market-deco.font
http://www.dafont.com/sf-comic-script.font
http://www.dafont.com/alias.font

It can be an other thing. Some othors don's want money for themselves but instead ask for a donation to a NGO or charity association.

Pour du préhistorique, j'utiliserai plutôt quelque chose comme ça :
http://www.dafont.com/fr/cro-magnum.font
http://www.dafont.com/fr/midnight-snack-bb.font
http://www.dafont.com/fr/jf-rock.font
http://www.dafont.com/fr/mawns-rock.font

Pour les pirates :
http://www.dafont.com/fr/1742frenchcivilite.font
http://www.dafont.com/fr/aquiline-two.font
http://www.dafont.com/fr/malagua.font
http://www.dafont.com/fr/treasure-map.font

It's not Arial (a very little difference for the "t") but it's very close.

Except for the S (and a little bit the R), it look like Arial Black.

Wao ! Beautifull work.

Something like that ?
http://www.letterheadfonts.com/fonts/betterbilt.php
http://www.letterheadfonts.com/fonts/ambrosia.php
http://www.letterheadfonts.com/fonts/rossantiqueroman.php
http://www.letterheadfonts.com/fonts/vienna.php

Do you speak about that ? http://www.myfonts.com/fonts/coffee-bin-fonts/letterhead/

J'adore les concours. Ca permet de faire bosser plein de gens et de n'en payer qu'un seul.

D'ailleurs, en parlant de "payer", je n'ai pas vu de "prix" dans ce concours... Aurais-je mal lu ?
Je n'ai pas vu non plus les coordonnées de l'huissier après de qui le règlement complets doit être déposé.