Awesomenauts is a multiplayer online battle arena (MOBA) video game developed by Dutch company Ronimo Games. The game was released for PlayStation 3 and Xbox 360 consoles in May 2012, and Windows in August 2012. It was ported to OS X and Linux. Another version of the game, Awesomenauts Assemble!, incorporating all the changes and additions available on Windows, OS X and Linux, was released for the PlayStation 4 in March 2014 and for the Xbox One in September 2016.

In May 2017, the Windows version of the game transitioned to a free-to-play title, incorporating an in-game currency and reward system to allow players to gain access to new characters and other customization aspects. In September 2019, Ronimo Games announced that development on the game had stopped indefinitely. Despite this, Awesomenauts was still available to play until the servers went offline on September 15, 2023 due to Ronimo's bankruptcy. In January 2025, the game was acquired by Atari and reverted officially to version 3.2.8, reintroducing matchmaking and announcing a plan to fully restore the game to previous functionality over time.^{[citation needed]}

Awesomenauts is a multiplayer online battle arena (MOBA) incorporating elements from 2D platformer and fighting games. At the start of a match, a player selects from one of the available characters known as "Awesomenauts". In addition to unique looks and voice-over work, each Awesomenaut has a vastly different set of base attributes such as health, movement speed, and attack strength, and regular and special attack moves.

In the game's primary match mode, two teams of three characters, selected before the match, are pitted against each other, with the goal to destroy the other's team's Solar Collector within the enemy's team base before the others do the same. Both teams have to fight their way through enemy players, automatic drones, and turrets that block the path until destroyed. Some maps contain other obstacles, such as a giant pit monster that consumes anything immediately above it that can be summoned by standing on a button. Upon death, the player may respawn back at their base after a short delay that gets longer as the game progresses. Maps include health pickups and Solar units, the game's currency. When a player kills an enemy or a turret, every member of the team earns Solar. When a team destroys a turret, a super-drone is generated that can take and deal more damage as it heads towards the enemy base.

As the player earns Solar, they can return to their base (either by moving there or through a short teleportation sequence) to heal and spend the Solar on various upgrades to these skill sets or character attributes. For each of four areas – the two special skills, the regular attack, and general attributes – the player can buy up to three of six available improvements, with some improvements which can be bought multiple times with benefits stacked. With the release of the "Starstorm" expansion, each match also features team experience and levels. The game starts both teams at level 1, and experience is collectively earned through killing enemy drones or Awesomenauts or taking out turrets. Each level slight improves base attribute values for all characters on that team, such as attack strength and healing rates, up to a maximum level of 20.

The default game mode is ranked play, which puts players into 9 different ranks and attempts to match players within these ranks; Romino Games subsequently will reward players that finish at the top ranks on the completion of a season before resetting all rankings. The game's servers will adjust the player's ranking depending on their performance. Within ranked play, no team can have two or more players using the same Awesomenaut character. If necessary, computer-controlled opponents will be used to fill out a team, and if a player drops out of a match, they will be replaced by a computer opponent. Other modes allow for more variations but do not contribute towards ranking. Such modes include skirmishes where the singular character limit is removed, and round-robin modes where every time a player is killed, they are randomly assigned to a new Awesomenaut. Single and local players can also engage in practice matches against computer-controlled teams.

Awesomenauts was announced for Xbox Live Arcade and PlayStation Network on 19 May 2011 in a press release from publisher DTP Entertainment. The project was supported by the Dutch Game Garden, a studio incubation program. The first playable build of the game was revealed for and played by the attending press at E3 2011. A release date of 2 May 2012 was later announced by developer Ronimo Games on 3 March 2012. The game was ported to Windows and Steam on 1 August 2012, with an OS X version arriving on 7 December 2012, and a Linux version on 29 May 2013.^{[citation needed]}

Ronimo Games announced a PlayStation 4 release, co-developed with Abstraction Games, with improvements and updates from the PC version, as well as DLC, on 14 August 2013, intended for release with the console's launch. The PlayStation 4 version, entitled Awesomenauts Assemble!, was released on 4 March 2014, following a delay to the console's launch window. On 2 June 2014, Ronimo Games announced an Xbox One version of the game, originally slated for Summer 2015 but later delayed to Fall of the same year.