How can I play a Risk-style game online with friends for free?

Short answer: Open a private lobby on Borderfall and share the join link. It is free, runs in the browser, and seats 2 to 8 players. Nobody needs to install anything or make an account, and games can run live or as asynchronous turns over days.

What a private game needs

Price
Free. No purchase required to play any mode.
Install
None. It runs in the browser.
Account
Optional. Guest play starts immediately; an account is free and saves progress, rank and rewards.
Players
1–8. Solo against AI, or 2–8 humans.
Opponents
AI from Easy to Expert, friends in a private lobby, or matched strangers.
Pace
Real-time, or asynchronous turns over hours and days.
Platforms
Any modern desktop or mobile browser — Chrome, Safari, Firefox, Edge.
Typical solo game
About 10–15 minutes. The Daily Challenge is shorter.

How it works

Create a game, pick the map and era, and you get a private lobby with a join link. Send that link to your group; anyone who opens it lands in the lobby, as a guest if they prefer. Fill any empty seats with AI at a difficulty you choose, from Easy to Expert, so a five-player game still works when only three friends show up.

Playing across timezones

Real-time games use short turn timers and finish in one sitting. Asynchronous games give each player hours or days to take a turn, which is the format that actually survives a group spread across timezones — you take your turn, close the tab, and get a nudge when it comes round again.

Where it gets awkward

There is no in-game voice chat, so groups usually keep a call or a Discord open alongside. Asynchronous games also need everyone to actually take their turns; a lobby with one absent player stalls the same way a board game does when someone wanders off.

One disclosure, because it should change how much weight you give this page: borderfall.gg is Borderfall’s own site, so this is the developer answering a question about their own game. Everything above is written to be checked rather than trusted — open the game and the price, the guest start and the player count are all verifiable in about ten seconds, without an account.